32117780771440 has 160 divisors (see below), whose sum is σ = 94870983868416. Its totient is φ = 9836853027840.

The previous prime is 32117780771437. The next prime is 32117780771449. The reversal of 32117780771440 is 4417708771123.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32117780771449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70932112 + ... + 71383471.

Almost surely, 2^{32117780771440} is an apocalyptic number.

It is an amenable number.

32117780771440 is an abundant number, since it is smaller than the sum of its proper divisors (62753203096976).

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

32117780771440 is a wasteful number, since it uses less digits than its factorization.

32117780771440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142315647 (or 142315641 counting only the distinct ones).

The product of its (nonzero) digits is 1843968, while the sum is 52.

The spelling of 32117780771440 in words is "thirty-two trillion, one hundred seventeen billion, seven hundred eighty million, seven hundred seventy-one thousand, four hundred forty".