12738460531 has 4 divisors (see below), whose sum is σ = 12857511672. Its totient is φ = 12619409392.

The previous prime is 12738460517. The next prime is 12738460547. The reversal of 12738460531 is 13506483721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13506483721 = 12451 ⋅1084771.

It is a cyclic number.

It is not a de Polignac number, because 12738460531 - 2⁵ = 12738460499 is a prime.

It is a super-2 number, since 2×12738460531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12738469531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59525410 + ... + 59525623.

It is an arithmetic number, because the mean of its divisors is an integer number (3214377918).

Almost surely, 2^12738460531 is an apocalyptic number.

12738460531 is a deficient number, since it is larger than the sum of its proper divisors (119051141).

12738460531 is a wasteful number, since it uses less digits than its factorization.

12738460531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119051140.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 12738460531 in words is "twelve billion, seven hundred thirty-eight million, four hundred sixty thousand, five hundred thirty-one".