678355724232 has 96 divisors (see below), whose sum is σ = 1978255936800. Its totient is φ = 209210383872.

The previous prime is 678355724219. The next prime is 678355724237. The reversal of 678355724232 is 232427553876.

678355724232 is a `hidden beast` number, since 6 + 7 + 8 + 35 + 572 + 4 + 2 + 32 = 666.

It is not an unprimeable number, because it can be changed into a prime (678355724237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4624498 + ... + 4768929.

It is an arithmetic number, because the mean of its divisors is an integer number (20606832675).

Almost surely, 2^678355724232 is an apocalyptic number.

It is an amenable number.

678355724232 is an abundant number, since it is smaller than the sum of its proper divisors (1299900212568).

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

678355724232 is a wasteful number, since it uses less digits than its factorization.

678355724232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9393515 (or 9393508 counting only the distinct ones).

The product of its digits is 16934400, while the sum is 54.

The spelling of 678355724232 in words is "six hundred seventy-eight billion, three hundred fifty-five million, seven hundred twenty-four thousand, two hundred thirty-two".