73418732730 has 48 divisors (see below), whose sum is σ = 218158521984. Its totient is φ = 16781424480.

The previous prime is 73418732707. The next prime is 73418732797. The reversal of 73418732730 is 3723781437.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58268206 + ... + 58269465.

It is an arithmetic number, because the mean of its divisors is an integer number (4544969208).

Almost surely, 2^73418732730 is an apocalyptic number.

73418732730 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

73418732730 is an abundant number, since it is smaller than the sum of its proper divisors (144739789254).

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

73418732730 is a wasteful number, since it uses less digits than its factorization.

73418732730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116537691 (or 116537688 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 45.

The spelling of 73418732730 in words is "seventy-three billion, four hundred eighteen million, seven hundred thirty-two thousand, seven hundred thirty".