31326725705 has 16 divisors (see below), whose sum is σ = 41014318464. Its totient is φ = 22780414080.

The previous prime is 31326725687. The next prime is 31326725737. The reversal of 31326725705 is 50752762313.

It is not a de Polignac number, because 31326725705 - 2¹² = 31326721609 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 527477 + ... + 583853.

It is an arithmetic number, because the mean of its divisors is an integer number (2563394904).

Almost surely, 2^31326725705 is an apocalyptic number.

It is an amenable number.

31326725705 is a deficient number, since it is larger than the sum of its proper divisors (9687592759).

31326725705 is a wasteful number, since it uses less digits than its factorization.

31326725705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66496.

The product of its (nonzero) digits is 264600, while the sum is 41.

The spelling of 31326725705 in words is "thirty-one billion, three hundred twenty-six million, seven hundred twenty-five thousand, seven hundred five".