167867487738 has 24 divisors (see below), whose sum is σ = 363742684500. Its totient is φ = 55951245504.

The previous prime is 167867487737. The next prime is 167867487743. The reversal of 167867487738 is 837784768761.

167867487738 is a `hidden beast` number, since 1 + 6 + 78 + 6 + 7 + 487 + 73 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 149006036169 + 18861451569 = 386013^2 + 137337^2 .

It is not an unprimeable number, because it can be changed into a prime (167867487731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152413 + ... + 599136.

Almost surely, 2^167867487738 is an apocalyptic number.

167867487738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

167867487738 is an abundant number, since it is smaller than the sum of its proper divisors (195875196762).

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

167867487738 is a wasteful number, since it uses less digits than its factorization.

167867487738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763966 (or 763963 counting only the distinct ones).

The product of its digits is 531062784, while the sum is 72.

The spelling of 167867487738 in words is "one hundred sixty-seven billion, eight hundred sixty-seven million, four hundred eighty-seven thousand, seven hundred thirty-eight".