20574241768 has 32 divisors (see below), whose sum is σ = 38952151560. Its totient is φ = 10187161600.

The previous prime is 20574241759. The next prime is 20574241781. The reversal of 20574241768 is 86714247502.

It can be written as a sum of positive squares in 4 ways, for example, as 6351771204 + 14222470564 = 79698^2 + 119258^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1090818 + ... + 1109518.

Almost surely, 2^20574241768 is an apocalyptic number.

It is an amenable number.

20574241768 is a deficient number, since it is larger than the sum of its proper divisors (18377909792).

20574241768 is a wasteful number, since it uses less digits than its factorization.

20574241768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20037 (or 20033 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 46.

The spelling of 20574241768 in words is "twenty billion, five hundred seventy-four million, two hundred forty-one thousand, seven hundred sixty-eight".