31583420377 has 16 divisors (see below), whose sum is σ = 33365368000. Its totient is φ = 29813603904.

The previous prime is 31583420333. The next prime is 31583420381. The reversal of 31583420377 is 77302438513.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31583420377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31583420317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13918399 + ... + 13920667.

It is an arithmetic number, because the mean of its divisors is an integer number (2085335500).

Almost surely, 2^31583420377 is an apocalyptic number.

It is an amenable number.

31583420377 is a deficient number, since it is larger than the sum of its proper divisors (1781947623).

31583420377 is a wasteful number, since it uses less digits than its factorization.

31583420377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4600.

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 31583420377 in words is "thirty-one billion, five hundred eighty-three million, four hundred twenty thousand, three hundred seventy-seven".