31954489497030 has 32 divisors (see below), whose sum is σ = 76693018562784. Its totient is φ = 8520947891456.

The previous prime is 31954489496989. The next prime is 31954489497037. The reversal of 31954489497030 is 3079498445913.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31954489497037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14538117 + ... + 16591136.

It is an arithmetic number, because the mean of its divisors is an integer number (2396656830087).

Almost surely, 2^{31954489497030} is an apocalyptic number.

31954489497030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31954489497030 is an abundant number, since it is smaller than the sum of its proper divisors (44738529065754).

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

31954489497030 is a wasteful number, since it uses less digits than its factorization.

31954489497030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31163480.

The product of its (nonzero) digits is 117573120, while the sum is 66.

The spelling of 31954489497030 in words is "thirty-one trillion, nine hundred fifty-four billion, four hundred eighty-nine million, four hundred ninety-seven thousand, thirty".