72930409139 has 16 divisors (see below), whose sum is σ = 88406562816. Its totient is φ = 58731523200.

The previous prime is 72930409121. The next prime is 72930409141. The reversal of 72930409139 is 93190403927.

It is a happy number.

It is not a de Polignac number, because 72930409139 - 2¹² = 72930405043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72930409093 and 72930409102.

It is not an unprimeable number, because it can be changed into a prime (72930409199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 468707 + ... + 604604.

It is an arithmetic number, because the mean of its divisors is an integer number (5525410176).

Almost surely, 2^72930409139 is an apocalyptic number.

72930409139 is a deficient number, since it is larger than the sum of its proper divisors (15476153677).

72930409139 is a wasteful number, since it uses less digits than its factorization.

72930409139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073906.

The product of its (nonzero) digits is 367416, while the sum is 47.

The spelling of 72930409139 in words is "seventy-two billion, nine hundred thirty million, four hundred nine thousand, one hundred thirty-nine".