72378475898739 has 16 divisors (see below), whose sum is σ = 96527517394080. Its totient is φ = 48240876913920.

The previous prime is 72378475898731. The next prime is 72378475898843. The reversal of 72378475898739 is 93789857487327.

It is not a de Polignac number, because 72378475898739 - 2³ = 72378475898731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72378475898731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292824897 + ... + 293071965.

It is an arithmetic number, because the mean of its divisors is an integer number (6032969837130).

Almost surely, 2^{72378475898739} is an apocalyptic number.

72378475898739 is a deficient number, since it is larger than the sum of its proper divisors (24149041495341).

72378475898739 is a wasteful number, since it uses less digits than its factorization.

72378475898739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269830.

The product of its digits is 35846737920, while the sum is 87.

The spelling of 72378475898739 in words is "seventy-two trillion, three hundred seventy-eight billion, four hundred seventy-five million, eight hundred ninety-eight thousand, seven hundred thirty-nine".