73902743728 has 40 divisors (see below), whose sum is σ = 156759515856. Its totient is φ = 33472588800.

The previous prime is 73902743657. The next prime is 73902743807. The reversal of 73902743728 is 82734720937.

It is a super-3 number, since 3×73902743728³ (a number of 34 digits) contains 333 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, 697701 + ... + 796612.

Almost surely, 2^73902743728 is an apocalyptic number.

It is an amenable number.

73902743728 is an abundant number, since it is smaller than the sum of its proper divisors (82856772128).

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

73902743728 is a wasteful number, since it uses less digits than its factorization.

73902743728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494613 (or 1494607 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 52.

The spelling of 73902743728 in words is "seventy-three billion, nine hundred two million, seven hundred forty-three thousand, seven hundred twenty-eight".