77337021984 has 48 divisors (see below), whose sum is σ = 204372201600. Its totient is φ = 25605989120.

The previous prime is 77337021977. The next prime is 77337022003. The reversal of 77337021984 is 48912073377.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2689032 + ... + 2717639.

It is an arithmetic number, because the mean of its divisors is an integer number (4257754200).

Almost surely, 2^77337021984 is an apocalyptic number.

It is an amenable number.

77337021984 is an abundant number, since it is smaller than the sum of its proper divisors (127035179616).

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

77337021984 is a wasteful number, since it uses less digits than its factorization.

77337021984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5406833 (or 5406825 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 51.

The spelling of 77337021984 in words is "seventy-seven billion, three hundred thirty-seven million, twenty-one thousand, nine hundred eighty-four".