31704452986 has 4 divisors (see below), whose sum is σ = 47556679482. Its totient is φ = 15852226492.

The previous prime is 31704452977. The next prime is 31704453019. The reversal of 31704452986 is 68925440713.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 27042158025 + 4662294961 = 164445^2 + 68281^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7926113245 + ... + 7926113248.

It is a 1-persistent number, because it is pandigital, but 2⋅31704452986 = 63408905972 is not.

Almost surely, 2^31704452986 is an apocalyptic number.

31704452986 is a deficient number, since it is larger than the sum of its proper divisors (15852226496).

31704452986 is a wasteful number, since it uses less digits than its factorization.

31704452986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15852226495.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 31704452986 in words is "thirty-one billion, seven hundred four million, four hundred fifty-two thousand, nine hundred eighty-six".