31116670368 has 96 divisors (see below), whose sum is σ = 93705486336. Its totient is φ = 8856622848.

The previous prime is 31116670363. The next prime is 31116670379. The reversal of 31116670368 is 86307661113.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (31116670363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88705 + ... + 264767.

It is an arithmetic number, because the mean of its divisors is an integer number (976098816).

Almost surely, 2^31116670368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31116670368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46852743168).

31116670368 is an abundant number, since it is smaller than the sum of its proper divisors (62588815968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31116670368 is a wasteful number, since it uses less digits than its factorization.

31116670368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176346 (or 176338 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 31116670368 in words is "thirty-one billion, one hundred sixteen million, six hundred seventy thousand, three hundred sixty-eight".