72391215802 has 16 divisors (see below), whose sum is σ = 111533368320. Its totient is φ = 35213632848.

The previous prime is 72391215797. The next prime is 72391215803. The reversal of 72391215802 is 20851219327.

It is not an unprimeable number, because it can be changed into a prime (72391215803) 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 7 ways as a sum of consecutive naturals, for example, 735043 + ... + 827689.

It is an arithmetic number, because the mean of its divisors is an integer number (6970835520).

Almost surely, 2^72391215802 is an apocalyptic number.

72391215802 is a deficient number, since it is larger than the sum of its proper divisors (39142152518).

72391215802 is a wasteful number, since it uses less digits than its factorization.

72391215802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103245.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 72391215802 in words is "seventy-two billion, three hundred ninety-one million, two hundred fifteen thousand, eight hundred two".