72308757034 has 4 divisors (see below), whose sum is σ = 108463135554. Its totient is φ = 36154378516.

The previous prime is 72308757013. The next prime is 72308757067. The reversal of 72308757034 is 43075780327.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 45413741025 + 26895016009 = 213105^2 + 163997^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18077189257 + ... + 18077189260.

Almost surely, 2^72308757034 is an apocalyptic number.

72308757034 is a deficient number, since it is larger than the sum of its proper divisors (36154378520).

72308757034 is a wasteful number, since it uses less digits than its factorization.

72308757034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36154378519.

The product of its (nonzero) digits is 987840, while the sum is 46.

The spelling of 72308757034 in words is "seventy-two billion, three hundred eight million, seven hundred fifty-seven thousand, thirty-four".