20762504464 has 135 divisors (see below), whose sum is σ = 46558486863. Its totient is φ = 8963675136.

The previous prime is 20762504461. The next prime is 20762504473. The reversal of 20762504464 is 46440526702.

The square root of 20762504464 is 144092.

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

It can be written as a sum of positive squares in 4 ways, for example, as 187470864 + 20575033600 = 13692^2 + 143440^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20762504461) 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, 127377247 + ... + 127377409.

Almost surely, 2^20762504464 is an apocalyptic number.

20762504464 is the 144092-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20762504464

20762504464 is an abundant number, since it is smaller than the sum of its proper divisors (25795982399).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20762504464 is a wasteful number, since it uses less digits than its factorization.

20762504464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 40.

The spelling of 20762504464 in words is "twenty billion, seven hundred sixty-two million, five hundred four thousand, four hundred sixty-four".