31105957376 has 80 divisors (see below), whose sum is σ = 67596173568. Its totient is φ = 14214144000.

The previous prime is 31105957307. The next prime is 31105957427. The reversal of 31105957376 is 67375950113.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 31105957376.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 649121 + ... + 695391.

Almost surely, 2^31105957376 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 31105957376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33798086784).

31105957376 is an abundant number, since it is smaller than the sum of its proper divisors (36490216192).

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

31105957376 is a wasteful number, since it uses less digits than its factorization.

31105957376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46403 (or 46387 counting only the distinct ones).

The product of its (nonzero) digits is 595350, while the sum is 47.

The spelling of 31105957376 in words is "thirty-one billion, one hundred five million, nine hundred fifty-seven thousand, three hundred seventy-six".