931291627013 has 4 divisors (see below), whose sum is σ = 1015954502208. Its totient is φ = 846628751820.

The previous prime is 931291626989. The next prime is 931291627027. The reversal of 931291627013 is 310726192139.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 931291627013 - 2¹⁸ = 931291364869 is a prime.

It is a super-2 number, since 2×931291627013² (a number of 25 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 (931291624013) 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, 42331437581 + ... + 42331437602.

It is an arithmetic number, because the mean of its divisors is an integer number (253988625552).

Almost surely, 2^931291627013 is an apocalyptic number.

It is an amenable number.

931291627013 is a deficient number, since it is larger than the sum of its proper divisors (84662875195).

931291627013 is a wasteful number, since it uses less digits than its factorization.

931291627013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84662875194.

The product of its (nonzero) digits is 122472, while the sum is 44.

The spelling of 931291627013 in words is "nine hundred thirty-one billion, two hundred ninety-one million, six hundred twenty-seven thousand, thirteen".