31384453876 has 6 divisors (see below), whose sum is σ = 54922794290. Its totient is φ = 15692226936.

The previous prime is 31384453873. The next prime is 31384453883. The reversal of 31384453876 is 67835448313.

It can be written as a sum of positive squares in only one way, i.e., 31261776100 + 122677776 = 176810^2 + 11076^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31384453873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3923056731 + ... + 3923056738.

Almost surely, 2^31384453876 is an apocalyptic number.

It is an amenable number.

31384453876 is a deficient number, since it is larger than the sum of its proper divisors (23538340414).

31384453876 is a wasteful number, since it uses less digits than its factorization.

31384453876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7846113473 (or 7846113471 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 52.

The spelling of 31384453876 in words is "thirty-one billion, three hundred eighty-four million, four hundred fifty-three thousand, eight hundred seventy-six".