73980648440 has 16 divisors (see below), whose sum is σ = 166456459080. Its totient is φ = 29592259360.

The previous prime is 73980648437. The next prime is 73980648473. The reversal of 73980648440 is 4484608937.

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, 924758066 + ... + 924758145.

Almost surely, 2^73980648440 is an apocalyptic number.

It is an amenable number.

73980648440 is an abundant number, since it is smaller than the sum of its proper divisors (92475810640).

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

73980648440 is a wasteful number, since it uses less digits than its factorization.

73980648440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1849516222 (or 1849516218 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 53.

The spelling of 73980648440 in words is "seventy-three billion, nine hundred eighty million, six hundred forty-eight thousand, four hundred forty".