72912578410 has 32 divisors (see below), whose sum is σ = 150025518720. Its totient is φ = 24992943552.

The previous prime is 72912578407. The next prime is 72912578477. The reversal of 72912578410 is 1487521927.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199936 + ... + 431044.

It is an arithmetic number, because the mean of its divisors is an integer number (4688297460).

Almost surely, 2^72912578410 is an apocalyptic number.

72912578410 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72912578410 is an abundant number, since it is smaller than the sum of its proper divisors (77112940310).

72912578410 is a wasteful number, since it uses less digits than its factorization.

72912578410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235630.

The product of its (nonzero) digits is 282240, while the sum is 46.

The spelling of 72912578410 in words is "seventy-two billion, nine hundred twelve million, five hundred seventy-eight thousand, four hundred ten".