31672861067 has 16 divisors (see below), whose sum is σ = 33570201600. Its totient is φ = 29833403040.

The previous prime is 31672861043. The next prime is 31672861069. The reversal of 31672861067 is 76016827613.

It is a cyclic number.

It is not a de Polignac number, because 31672861067 - 2²² = 31668666763 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31672861069) 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, 386534 + ... + 461252.

It is an arithmetic number, because the mean of its divisors is an integer number (2098137600).

Almost surely, 2^31672861067 is an apocalyptic number.

31672861067 is a deficient number, since it is larger than the sum of its proper divisors (1897340533).

31672861067 is a wasteful number, since it uses less digits than its factorization.

31672861067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75106.

The product of its (nonzero) digits is 508032, while the sum is 47.

The spelling of 31672861067 in words is "thirty-one billion, six hundred seventy-two million, eight hundred sixty-one thousand, sixty-seven".