678983309137 has 8 divisors (see below), whose sum is σ = 776252554496. Its totient is φ = 581781971232.

The previous prime is 678983309111. The next prime is 678983309161. The reversal of 678983309137 is 731903389876.

678983309137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 678983309137 - 2⁷ = 678983309009 is a prime.

It is a super-2 number, since 2×678983309137² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (678983309167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16955433 + ... + 16995430.

It is an arithmetic number, because the mean of its divisors is an integer number (97031569312).

Almost surely, 2^678983309137 is an apocalyptic number.

It is an amenable number.

678983309137 is a deficient number, since it is larger than the sum of its proper divisors (97269245359).

678983309137 is a wasteful number, since it uses less digits than its factorization.

678983309137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33953727.

The product of its (nonzero) digits is 41150592, while the sum is 64.

The spelling of 678983309137 in words is "six hundred seventy-eight billion, nine hundred eighty-three million, three hundred nine thousand, one hundred thirty-seven".