31377358648 has 16 divisors (see below), whose sum is σ = 58856924880. Its totient is φ = 15682178688.

The previous prime is 31377358637. The next prime is 31377358687. The reversal of 31377358648 is 84685377313.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 792036 + ... + 830707.

It is an arithmetic number, because the mean of its divisors is an integer number (3678557805).

Almost surely, 2^31377358648 is an apocalyptic number.

It is an amenable number.

31377358648 is a deficient number, since it is larger than the sum of its proper divisors (27479566232).

31377358648 is a wasteful number, since it uses less digits than its factorization.

31377358648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625166 (or 1625162 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 55.

The spelling of 31377358648 in words is "thirty-one billion, three hundred seventy-seven million, three hundred fifty-eight thousand, six hundred forty-eight".