13770625631 has 8 divisors (see below), whose sum is σ = 15748897920. Its totient is φ = 11795113368.

The previous prime is 13770625613. The next prime is 13770625639. The reversal of 13770625631 is 13652607731.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13770625631 is a prime.

It is a super-2 number, since 2×13770625631² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13770625639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 679301 + ... + 699278.

It is an arithmetic number, because the mean of its divisors is an integer number (1968612240).

Almost surely, 2^13770625631 is an apocalyptic number.

13770625631 is a deficient number, since it is larger than the sum of its proper divisors (1978272289).

13770625631 is a wasteful number, since it uses less digits than its factorization.

13770625631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380013.

The product of its (nonzero) digits is 158760, while the sum is 41.

The spelling of 13770625631 in words is "thirteen billion, seven hundred seventy million, six hundred twenty-five thousand, six hundred thirty-one".