31377358642 has 48 divisors (see below), whose sum is σ = 55730185920. Its totient is φ = 13207192992.

The previous prime is 31377358637. The next prime is 31377358687. The reversal of 31377358642 is 24685377313.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8919868 + ... + 8923384.

It is an arithmetic number, because the mean of its divisors is an integer number (1161045540).

Almost surely, 2^31377358642 is an apocalyptic number.

31377358642 is a deficient number, since it is larger than the sum of its proper divisors (24352827278).

31377358642 is a wasteful number, since it uses less digits than its factorization.

31377358642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5135 (or 5128 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 49.

The spelling of 31377358642 in words is "thirty-one billion, three hundred seventy-seven million, three hundred fifty-eight thousand, six hundred forty-two".