73149386730 has 64 divisors (see below), whose sum is σ = 201323259648. Its totient is φ = 16662781440.

The previous prime is 73149386693. The next prime is 73149386753. The reversal of 73149386730 is 3768394137.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 532891 + ... + 655950.

It is an arithmetic number, because the mean of its divisors is an integer number (3145675932).

Almost surely, 2^73149386730 is an apocalyptic number.

73149386730 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

73149386730 is an abundant number, since it is smaller than the sum of its proper divisors (128173872918).

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

73149386730 is a wasteful number, since it uses less digits than its factorization.

73149386730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189151.

The product of its (nonzero) digits is 2286144, while the sum is 51.

The spelling of 73149386730 in words is "seventy-three billion, one hundred forty-nine million, three hundred eighty-six thousand, seven hundred thirty".