31407064505 has 32 divisors (see below), whose sum is σ = 40587264000. Its totient is φ = 23255923392.

The previous prime is 31407064501. The next prime is 31407064531. The reversal of 31407064505 is 50546070413.

It is not a de Polignac number, because 31407064505 - 2² = 31407064501 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31407064501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2668664 + ... + 2680406.

It is an arithmetic number, because the mean of its divisors is an integer number (1268352000).

Almost surely, 2^31407064505 is an apocalyptic number.

It is an amenable number.

31407064505 is a deficient number, since it is larger than the sum of its proper divisors (9180199495).

31407064505 is a wasteful number, since it uses less digits than its factorization.

31407064505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12413.

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 31407064505 in words is "thirty-one billion, four hundred seven million, sixty-four thousand, five hundred five".