31729485954 has 16 divisors (see below), whose sum is σ = 63693141120. Its totient is φ = 10537467120.

The previous prime is 31729485889. The next prime is 31729486039. The reversal of 31729485954 is 45958492713.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31729485894 and 31729485903.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9755289 + ... + 9758540.

It is an arithmetic number, because the mean of its divisors is an integer number (3980821320).

Almost surely, 2^31729485954 is an apocalyptic number.

31729485954 is an abundant number, since it is smaller than the sum of its proper divisors (31963655166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31729485954 is a wasteful number, since it uses less digits than its factorization.

31729485954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19514105.

The product of its digits is 10886400, while the sum is 57.

The spelling of 31729485954 in words is "thirty-one billion, seven hundred twenty-nine million, four hundred eighty-five thousand, nine hundred fifty-four".