73081791748 has 24 divisors (see below), whose sum is σ = 153856404800. Its totient is φ = 29672306208.

The previous prime is 73081791721. The next prime is 73081791751. The reversal of 73081791748 is 84719718037.

It is a happy number.

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, 68685363 + ... + 68686426.

Almost surely, 2^73081791748 is an apocalyptic number.

It is an amenable number.

73081791748 is an abundant number, since it is smaller than the sum of its proper divisors (80774613052).

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

73081791748 is a wasteful number, since it uses less digits than its factorization.

73081791748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137371819 (or 137371817 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 55.

The spelling of 73081791748 in words is "seventy-three billion, eighty-one million, seven hundred ninety-one thousand, seven hundred forty-eight".