142196967581769 has 27 divisors (see below), whose sum is σ = 205773269596167. Its totient is φ = 94623997934016.

The previous prime is 142196967581737. The next prime is 142196967581771. The reversal of 142196967581769 is 967185769691241.

The square root of 142196967581769 is 11924637.

It is a perfect power (a square), and thus also a powerful number.

142196967581769 is a `hidden beast` number, since 1 + 4 + 21 + 9 + 6 + 9 + 6 + 7 + 581 + 7 + 6 + 9 = 666.

142196967581769 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 87435309969225 + 54761657612544 = 9350685^2 + 7400112^2 .

It is not a de Polignac number, because 142196967581769 - 2⁵ = 142196967581737 is a prime.

It is a super-2 number, since 2×142196967581769² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142196967581269) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 21213925872 + ... + 21213932574.

Almost surely, 2^{142196967581769} is an apocalyptic number.

142196967581769 is the 11924637-th square number.

142196967581769 is the 5962319-th centered octagonal number.

It is an amenable number.

142196967581769 is a deficient number, since it is larger than the sum of its proper divisors (63576302014398).

142196967581769 is an frugal number, since it uses more digits than its factorization.

142196967581769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14598 (or 7299 counting only the distinct ones).

The product of its digits is 2469035520, while the sum is 81.

The spelling of 142196967581769 in words is "one hundred forty-two trillion, one hundred ninety-six billion, nine hundred sixty-seven million, five hundred eighty-one thousand, seven hundred sixty-nine".