72383610978 has 48 divisors (see below), whose sum is σ = 179272469376. Its totient is φ = 20676778560.

The previous prime is 72383610947. The next prime is 72383610997. The reversal of 72383610978 is 87901638327.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 583675 + ... + 696737.

It is an arithmetic number, because the mean of its divisors is an integer number (3734843112).

Almost surely, 2^72383610978 is an apocalyptic number.

72383610978 is an abundant number, since it is smaller than the sum of its proper divisors (106888858398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72383610978 is a wasteful number, since it uses less digits than its factorization.

72383610978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118159 (or 118156 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 72383610978 in words is "seventy-two billion, three hundred eighty-three million, six hundred ten thousand, nine hundred seventy-eight".