523152502720638 has 16 divisors (see below), whose sum is σ = 1195777149075840. Its totient is φ = 149472143634456.

The previous prime is 523152502720637. The next prime is 523152502720651. The reversal of 523152502720638 is 836027205251325.

It is a super-2 number, since 2×523152502720638² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523152502720637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6228005984728 + ... + 6228005984811.

It is an arithmetic number, because the mean of its divisors is an integer number (74736071817240).

Almost surely, 2^{523152502720638} is an apocalyptic number.

523152502720638 is an abundant number, since it is smaller than the sum of its proper divisors (672624646355202).

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

523152502720638 is a wasteful number, since it uses less digits than its factorization.

523152502720638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12456011969551.

The product of its (nonzero) digits is 6048000, while the sum is 51.

The spelling of 523152502720638 in words is "five hundred twenty-three trillion, one hundred fifty-two billion, five hundred two million, seven hundred twenty thousand, six hundred thirty-eight".