31443091767396 has 63 divisors (see below), whose sum is σ = 82501170048073. Its totient is φ = 10480929655680.

The previous prime is 31443091767383. The next prime is 31443091767427. The reversal of 31443091767396 is 69376719034413.

The square root of 31443091767396 is 5607414.

It is a perfect power (a square), and thus also a powerful number.

31443091767396 is a `hidden beast` number, since 3 + 1 + 4 + 4 + 309 + 176 + 73 + 96 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19707260189796 + 11735831577600 = 4439286^2 + 3425760^2 .

It is a super-2 number, since 2×31443091767396² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 302748436 + ... + 302852276.

Almost surely, 2^{31443091767396} is an apocalyptic number.

31443091767396 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

31443091767396 is the 5607414-th square number.

It is an amenable number.

31443091767396 is an abundant number, since it is smaller than the sum of its proper divisors (51058078280677).

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

31443091767396 is an frugal number, since it uses more digits than its factorization.

31443091767396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207704 (or 103846 counting only the distinct ones).

The product of its (nonzero) digits is 61725888, while the sum is 63.

The spelling of 31443091767396 in words is "thirty-one trillion, four hundred forty-three billion, ninety-one million, seven hundred sixty-seven thousand, three hundred ninety-six".