72768978022 has 8 divisors (see below), whose sum is σ = 117549887616. Its totient is φ = 33585682152.

The previous prime is 72768978019. The next prime is 72768978067. The reversal of 72768978022 is 22087986727.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1399403398 + ... + 1399403449.

It is an arithmetic number, because the mean of its divisors is an integer number (14693735952).

Almost surely, 2^72768978022 is an apocalyptic number.

72768978022 is a deficient number, since it is larger than the sum of its proper divisors (44780909594).

72768978022 is a wasteful number, since it uses less digits than its factorization.

72768978022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2798806862.

The product of its (nonzero) digits is 9483264, while the sum is 58.

The spelling of 72768978022 in words is "seventy-two billion, seven hundred sixty-eight million, nine hundred seventy-eight thousand, twenty-two".