78041173494 has 8 divisors (see below), whose sum is σ = 156082347000. Its totient is φ = 26013724496.

The previous prime is 78041173487. The next prime is 78041173501. The reversal of 78041173494 is 49437114087.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (78041173487) and next prime (78041173501).

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

78041173494 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6503431119 + ... + 6503431130.

It is an arithmetic number, because the mean of its divisors is an integer number (19510293375).

Almost surely, 2^78041173494 is an apocalyptic number.

78041173494 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

78041173494 is a wasteful number, since it uses less digits than its factorization.

78041173494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13006862254.

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 78041173494 in words is "seventy-eight billion, forty-one million, one hundred seventy-three thousand, four hundred ninety-four".