12472126731 has 6 divisors (see below), whose sum is σ = 18015294180. Its totient is φ = 8314751148.

The previous prime is 12472126697. The next prime is 12472126741. The reversal of 12472126731 is 13762127421.

It is a de Polignac number, because none of the positive numbers 2^k-12472126731 is a prime.

It is a super-2 number, since 2×12472126731² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12472126741) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 692895921 + ... + 692895938.

It is an arithmetic number, because the mean of its divisors is an integer number (3002549030).

Almost surely, 2^12472126731 is an apocalyptic number.

12472126731 is a deficient number, since it is larger than the sum of its proper divisors (5543167449).

12472126731 is a wasteful number, since it uses less digits than its factorization.

12472126731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385791865 (or 1385791862 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The spelling of 12472126731 in words is "twelve billion, four hundred seventy-two million, one hundred twenty-six thousand, seven hundred thirty-one".