523223661740731 has 64 divisors (see below), whose sum is σ = 632911442688000. Its totient is φ = 423107094896640.

The previous prime is 523223661740683. The next prime is 523223661740753. The reversal of 523223661740731 is 137047166322325.

It is not a de Polignac number, because 523223661740731 - 2¹¹ = 523223661738683 is a prime.

It is a super-2 number, since 2×523223661740731² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (523223664740731) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1155739525 + ... + 1156192153.

It is an arithmetic number, because the mean of its divisors is an integer number (9889241292000).

Almost surely, 2^{523223661740731} is an apocalyptic number.

523223661740731 is a deficient number, since it is larger than the sum of its proper divisors (109687780947269).

523223661740731 is a wasteful number, since it uses less digits than its factorization.

523223661740731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453452.

The product of its (nonzero) digits is 7620480, while the sum is 52.

The spelling of 523223661740731 in words is "five hundred twenty-three trillion, two hundred twenty-three billion, six hundred sixty-one million, seven hundred forty thousand, seven hundred thirty-one".