31427000517 has 48 divisors (see below), whose sum is σ = 47710696320. Its totient is φ = 18365128320.

The previous prime is 31427000509. The next prime is 31427000543. The reversal of 31427000517 is 71500072413.

It is not a de Polignac number, because 31427000517 - 2³ = 31427000509 is a prime.

It is a super-2 number, since 2×31427000517² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31427000557) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10346523 + ... + 10349559.

It is an arithmetic number, because the mean of its divisors is an integer number (993972840).

Almost surely, 2^31427000517 is an apocalyptic number.

It is an amenable number.

31427000517 is a deficient number, since it is larger than the sum of its proper divisors (16283695803).

31427000517 is a wasteful number, since it uses less digits than its factorization.

31427000517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4074 (or 4063 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The spelling of 31427000517 in words is "thirty-one billion, four hundred twenty-seven million, five hundred seventeen", and thus it is an aban number.