12495444731 has 16 divisors (see below), whose sum is σ = 15586007040. Its totient is φ = 9732166080.

The previous prime is 12495444719. The next prime is 12495444733. The reversal of 12495444731 is 13744459421.

It is not a de Polignac number, because 12495444731 - 2⁶ = 12495444667 is a prime.

It is a super-2 number, since 2×12495444731² (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 (12495444733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133175 + ... + 206703.

It is an arithmetic number, because the mean of its divisors is an integer number (974125440).

Almost surely, 2^12495444731 is an apocalyptic number.

12495444731 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12495444731 is a deficient number, since it is larger than the sum of its proper divisors (3090562309).

12495444731 is a wasteful number, since it uses less digits than its factorization.

12495444731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75754.

The product of its digits is 483840, while the sum is 44.

The spelling of 12495444731 in words is "twelve billion, four hundred ninety-five million, four hundred forty-four thousand, seven hundred thirty-one".