32077558464 has 112 divisors (see below), whose sum is σ = 98165399808. Its totient is φ = 9054563328.

The previous prime is 32077558459. The next prime is 32077558493. The reversal of 32077558464 is 46485577023.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×32077558464² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32227 + ... + 255330.

It is an arithmetic number, because the mean of its divisors is an integer number (876476784).

Almost surely, 2^32077558464 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 32077558464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49082699904).

32077558464 is an abundant number, since it is smaller than the sum of its proper divisors (66087841344).

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

32077558464 is a wasteful number, since it uses less digits than its factorization.

32077558464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287662 (or 287652 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 51.

The spelling of 32077558464 in words is "thirty-two billion, seventy-seven million, five hundred fifty-eight thousand, four hundred sixty-four".