73777448040 has 32 divisors (see below), whose sum is σ = 221332344480. Its totient is φ = 19673986112.

The previous prime is 73777448023. The next prime is 73777448053. The reversal of 73777448040 is 4084477737.

It is a super-2 number, since 2×73777448040² (a number of 23 digits) contains 22 as substring.

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, 307405914 + ... + 307406153.

It is an arithmetic number, because the mean of its divisors is an integer number (6916635765).

Almost surely, 2^73777448040 is an apocalyptic number.

It is an amenable number.

73777448040 is an abundant number, since it is smaller than the sum of its proper divisors (147554896440).

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

73777448040 is a wasteful number, since it uses less digits than its factorization.

73777448040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614812081 (or 614812077 counting only the distinct ones).

The product of its (nonzero) digits is 3687936, while the sum is 51.

The spelling of 73777448040 in words is "seventy-three billion, seven hundred seventy-seven million, four hundred forty-eight thousand, forty".