31194968436 has 36 divisors (see below), whose sum is σ = 83004157600. Its totient is φ = 9851042448.

The previous prime is 31194968429. The next prime is 31194968477. The reversal of 31194968436 is 63486949113.

31194968436 is a `hidden beast` number, since 3 + 119 + 4 + 96 + 8 + 436 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 22802656 + ... + 22804023.

Almost surely, 2^31194968436 is an apocalyptic number.

31194968436 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

31194968436 is an abundant number, since it is smaller than the sum of its proper divisors (51809189164).

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

31194968436 is a wasteful number, since it uses less digits than its factorization.

31194968436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45606708 (or 45606703 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The spelling of 31194968436 in words is "thirty-one billion, one hundred ninety-four million, nine hundred sixty-eight thousand, four hundred thirty-six".