142766572521 has 32 divisors (see below), whose sum is σ = 196344973440. Its totient is φ = 92244096000.

The previous prime is 142766572477. The next prime is 142766572523. The reversal of 142766572521 is 125275667241.

It is not a de Polignac number, because 142766572521 - 2¹⁸ = 142766310377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142766572523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2715201 + ... + 2767281.

It is an arithmetic number, because the mean of its divisors is an integer number (6135780420).

Almost surely, 2^142766572521 is an apocalyptic number.

It is an amenable number.

142766572521 is a deficient number, since it is larger than the sum of its proper divisors (53578400919).

142766572521 is a wasteful number, since it uses less digits than its factorization.

142766572521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52377.

The product of its digits is 1411200, while the sum is 48.

The spelling of 142766572521 in words is "one hundred forty-two billion, seven hundred sixty-six million, five hundred seventy-two thousand, five hundred twenty-one".