12753779031 has 24 divisors (see below), whose sum is σ = 21128282240. Its totient is φ = 7262111376.

The previous prime is 12753779029. The next prime is 12753779041. The reversal of 12753779031 is 13097735721.

12753779031 is a `hidden beast` number, since 1 + 27 + 537 + 7 + 90 + 3 + 1 = 666.

It is not a de Polignac number, because 12753779031 - 2¹ = 12753779029 is a prime.

It is a super-2 number, since 2×12753779031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12753779041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 339841 + ... + 375498.

Almost surely, 2^12753779031 is an apocalyptic number.

12753779031 is a deficient number, since it is larger than the sum of its proper divisors (8374503209).

12753779031 is a wasteful number, since it uses less digits than its factorization.

12753779031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715635 (or 715632 counting only the distinct ones).

The product of its (nonzero) digits is 277830, while the sum is 45.

The spelling of 12753779031 in words is "twelve billion, seven hundred fifty-three million, seven hundred seventy-nine thousand, thirty-one".