62684636161 has 27 divisors (see below), whose sum is σ = 74601368067. Its totient is φ = 52517401440.

The previous prime is 62684636159. The next prime is 62684636171. The reversal of 62684636161 is 16163648626.

The square root of 62684636161 is 250369.

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

It can be written as a sum of positive squares in only one way, i.e., 164634561 + 62520001600 = 12831^2 + 250040^2 .

It is not a de Polignac number, because 62684636161 - 2¹ = 62684636159 is a prime.

It is a super-2 number, since 2×62684636161² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (62684636171) 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, 82371021 + ... + 82371781.

Almost surely, 2^62684636161 is an apocalyptic number.

62684636161 is the 250369-th square number.

62684636161 is the 125185-th centered octagonal number.

It is an amenable number.

62684636161 is a deficient number, since it is larger than the sum of its proper divisors (11916731906).

62684636161 is an frugal number, since it uses more digits than its factorization.

62684636161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630 (or 815 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 49.

Multiplying 62684636161 by its sum of digits (49), we get a square (3071547171889 = 1752583²).

62684636161 divided by its sum of digits (49) gives a square (1279278289 = 35767²).

The spelling of 62684636161 in words is "sixty-two billion, six hundred eighty-four million, six hundred thirty-six thousand, one hundred sixty-one".