31742434700000 has 72 divisors (see below), whose sum is σ = 78111148707144. Its totient is φ = 12696973840000.

The previous prime is 31742434699979. The next prime is 31742434700003. The reversal of 31742434700000 is 743424713.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31742434700003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158612174 + ... + 158812173.

It is an arithmetic number, because the mean of its divisors is an integer number (1084877065377).

Almost surely, 2^{31742434700000} is an apocalyptic number.

It is an amenable number.

31742434700000 is an abundant number, since it is smaller than the sum of its proper divisors (46368714007144).

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

31742434700000 is an frugal number, since it uses more digits than its factorization.

31742434700000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317424382 (or 317424354 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 35.

The spelling of 31742434700000 in words is "thirty-one trillion, seven hundred forty-two billion, four hundred thirty-four million, seven hundred thousand".