31402899068 has 12 divisors (see below), whose sum is σ = 55073770080. Its totient is φ = 15667536192.

The previous prime is 31402899067. The next prime is 31402899071. The reversal of 31402899068 is 86099820413.

It is a happy number.

It is a super-2 number, since 2×31402899068² (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 (31402899067) 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, 8476253 + ... + 8479956.

It is an arithmetic number, because the mean of its divisors is an integer number (4589480840).

Almost surely, 2^31402899068 is an apocalyptic number.

It is an amenable number.

31402899068 is a deficient number, since it is larger than the sum of its proper divisors (23670871012).

31402899068 is a wasteful number, since it uses less digits than its factorization.

31402899068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16956676 (or 16956674 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 31402899068 in words is "thirty-one billion, four hundred two million, eight hundred ninety-nine thousand, sixty-eight".