72056703874 has 4 divisors (see below), whose sum is σ = 108085055814. Its totient is φ = 36028351936.

The previous prime is 72056703833. The next prime is 72056703877. The reversal of 72056703874 is 47830765027.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47830765027 = 15289 ⋅3128443.

It can be written as a sum of positive squares in only one way, i.e., 68248950025 + 3807753849 = 261245^2 + 61707^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (72056703877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18014175967 + ... + 18014175970.

Almost surely, 2^72056703874 is an apocalyptic number.

72056703874 is a deficient number, since it is larger than the sum of its proper divisors (36028351940).

72056703874 is a wasteful number, since it uses less digits than its factorization.

72056703874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36028351939.

The product of its (nonzero) digits is 1975680, while the sum is 49.

The spelling of 72056703874 in words is "seventy-two billion, fifty-six million, seven hundred three thousand, eight hundred seventy-four".