72810757394078 has 16 divisors (see below), whose sum is σ = 119146185446400. Its totient is φ = 33095435007000.

The previous prime is 72810757393937. The next prime is 72810757394087. The reversal of 72810757394078 is 87049375701827.

It is a junction number, because it is equal to n+sod(n) for n = 72810757393999 and 72810757394017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16138448 + ... + 20151203.

It is an arithmetic number, because the mean of its divisors is an integer number (7446636590400).

Almost surely, 2^{72810757394078} is an apocalyptic number.

72810757394078 is a deficient number, since it is larger than the sum of its proper divisors (46335428052322).

72810757394078 is a wasteful number, since it uses less digits than its factorization.

72810757394078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36380863.

The product of its (nonzero) digits is 165957120, while the sum is 68.

It can be divided in two parts, 728107 and 57394078, that added together give a palindrome (58122185).

The spelling of 72810757394078 in words is "seventy-two trillion, eight hundred ten billion, seven hundred fifty-seven million, three hundred ninety-four thousand, seventy-eight".