31474958797212 has 192 divisors, whose sum is σ = 88950257270784. Its totient is φ = 8467693217280.

The previous prime is 31474958797211. The next prime is 31474958797267. The reversal of 31474958797212 is 21279785947413.

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31474958797211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 191624473 + ... + 191788655.

It is an arithmetic number, because the mean of its divisors is an integer number (463282589952).

Almost surely, 2^{31474958797212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31474958797212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44475128635392).

31474958797212 is an abundant number, since it is smaller than the sum of its proper divisors (57475298473572).

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

31474958797212 is a wasteful number, since it uses less digits than its factorization.

31474958797212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165768 (or 165766 counting only the distinct ones).

The product of its digits is 213373440, while the sum is 69.

The spelling of 31474958797212 in words is "thirty-one trillion, four hundred seventy-four billion, nine hundred fifty-eight million, seven hundred ninety-seven thousand, two hundred twelve".