677169942 has 32 divisors (see below), whose sum is σ = 1451302272. Its totient is φ = 209883264.

The previous prime is 677169907. The next prime is 677169943. The reversal of 677169942 is 249961776.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677169943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31528 + ... + 48459.

It is an arithmetic number, because the mean of its divisors is an integer number (45353196).

Almost surely, 2^677169942 is an apocalyptic number.

677169942 is an abundant number, since it is smaller than the sum of its proper divisors (774132330).

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

677169942 is a wasteful number, since it uses less digits than its factorization.

677169942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80092.

The product of its digits is 1143072, while the sum is 51.

The square root of 677169942 is about 26022.4891584183. The cubic root of 677169942 is about 878.1443084148.

The spelling of 677169942 in words is "six hundred seventy-seven million, one hundred sixty-nine thousand, nine hundred forty-two".