72490072490 has 64 divisors (see below), whose sum is σ = 143986170240. Its totient is φ = 26056800000.

The previous prime is 72490072483. The next prime is 72490072493. The reversal of 72490072490 is 9427009427.

It is not an unprimeable number, because it can be changed into a prime (72490072493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7316540 + ... + 7326440.

It is an arithmetic number, because the mean of its divisors is an integer number (2249783910).

Almost surely, 2^72490072490 is an apocalyptic number.

72490072490 is a deficient number, since it is larger than the sum of its proper divisors (71496097750).

72490072490 is a wasteful number, since it uses less digits than its factorization.

72490072490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10679.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 72490072490 in words is "seventy-two billion, four hundred ninety million, seventy-two thousand, four hundred ninety".