31426473705 has 64 divisors (see below), whose sum is σ = 55970562816. Its totient is φ = 14929920000.

The previous prime is 31426473691. The next prime is 31426473733. The reversal of 31426473705 is 50737462413.

It is not a de Polignac number, because 31426473705 - 2¹⁰ = 31426472681 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1606785 + ... + 1626225.

It is an arithmetic number, because the mean of its divisors is an integer number (874540044).

Almost surely, 2^31426473705 is an apocalyptic number.

It is an amenable number.

31426473705 is a deficient number, since it is larger than the sum of its proper divisors (24544089111).

31426473705 is a wasteful number, since it uses less digits than its factorization.

31426473705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19658.

The product of its (nonzero) digits is 423360, while the sum is 42.

The spelling of 31426473705 in words is "thirty-one billion, four hundred twenty-six million, four hundred seventy-three thousand, seven hundred five".