94170499945978 has 4 divisors (see below), whose sum is σ = 141255749918970. Its totient is φ = 47085249972988.

The previous prime is 94170499945933. The next prime is 94170499946023. The reversal of 94170499945978 is 87954999407149.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (94170499945933) and next prime (94170499946023).

It can be written as a sum of positive squares in only one way, i.e., 89412966840649 + 4757533105329 = 9455843^2 + 2181177^2 .

It is a Smith number, since the sum of its digits (85) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 94170499945895 and 94170499945904.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23542624986493 + ... + 23542624986496.

Almost surely, 2^{94170499945978} is an apocalyptic number.

94170499945978 is a deficient number, since it is larger than the sum of its proper divisors (47085249972992).

94170499945978 is a wasteful number, since it uses less digits than its factorization.

94170499945978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47085249972991.

The product of its (nonzero) digits is 7407106560, while the sum is 85.

The spelling of 94170499945978 in words is "ninety-four trillion, one hundred seventy billion, four hundred ninety-nine million, nine hundred forty-five thousand, nine hundred seventy-eight".