678575159040 has 72 divisors (see below), whose sum is σ = 2167199426448. Its totient is φ = 180953374720.

The previous prime is 678575159033. The next prime is 678575159051. The reversal of 678575159040 is 40951575876.

It is a super-2 number, since 2×678575159040² (a number of 24 digits) contains 22 as substring.

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, 88352301 + ... + 88359980.

It is an arithmetic number, because the mean of its divisors is an integer number (30099992034).

Almost surely, 2^678575159040 is an apocalyptic number.

678575159040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

678575159040 is an abundant number, since it is smaller than the sum of its proper divisors (1488624267408).

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

678575159040 is a wasteful number, since it uses less digits than its factorization.

678575159040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176712305 (or 176712291 counting only the distinct ones).

The product of its (nonzero) digits is 10584000, while the sum is 57.

The spelling of 678575159040 in words is "six hundred seventy-eight billion, five hundred seventy-five million, one hundred fifty-nine thousand, forty".