31432177340 has 12 divisors (see below), whose sum is σ = 66007572456. Its totient is φ = 12572870928.

The previous prime is 31432177331. The next prime is 31432177351. The reversal of 31432177340 is 4377123413.

It is a self number, because there is not a number n which added to its sum of digits gives 31432177340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 785804414 + ... + 785804453.

It is an arithmetic number, because the mean of its divisors is an integer number (5500631038).

Almost surely, 2^31432177340 is an apocalyptic number.

It is an amenable number.

31432177340 is an abundant number, since it is smaller than the sum of its proper divisors (34575395116).

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

31432177340 is a wasteful number, since it uses less digits than its factorization.

31432177340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571608876 (or 1571608874 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 35.

The spelling of 31432177340 in words is "thirty-one billion, four hundred thirty-two million, one hundred seventy-seven thousand, three hundred forty".