31496857134336 has 324 divisors, whose sum is σ = 99858918603444. Its totient is φ = 9540730552320.

The previous prime is 31496857134329. The next prime is 31496857134361. The reversal of 31496857134336 is 63343175869413.

31496857134336 is a `hidden beast` number, since 3 + 1 + 4 + 96 + 85 + 7 + 134 + 336 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12059339694336 + 19437517440000 = 3472656^2 + 4408800^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 750744336 + ... + 750786288.

Almost surely, 2^{31496857134336} is an apocalyptic number.

31496857134336 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31496857134336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49929459301722).

31496857134336 is an abundant number, since it is smaller than the sum of its proper divisors (68362061469108).

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

31496857134336 is a wasteful number, since it uses less digits than its factorization.

31496857134336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44690 (or 44662 counting only the distinct ones).

The product of its digits is 117573120, while the sum is 63.

The spelling of 31496857134336 in words is "thirty-one trillion, four hundred ninety-six billion, eight hundred fifty-seven million, one hundred thirty-four thousand, three hundred thirty-six".