72049103478 has 64 divisors (see below), whose sum is σ = 178726521600. Its totient is φ = 21325308480.

The previous prime is 72049103443. The next prime is 72049103509. The reversal of 72049103478 is 87430194027.

72049103478 is a `hidden beast` number, since 72 + 0 + 4 + 9 + 103 + 478 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1384863 + ... + 1435946.

It is an arithmetic number, because the mean of its divisors is an integer number (2792601900).

Almost surely, 2^72049103478 is an apocalyptic number.

72049103478 is an abundant number, since it is smaller than the sum of its proper divisors (106677418122).

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

72049103478 is a wasteful number, since it uses less digits than its factorization.

72049103478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2820874 (or 2820868 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 72049103478 in words is "seventy-two billion, forty-nine million, one hundred three thousand, four hundred seventy-eight".