78681054 has 8 divisors (see below), whose sum is σ = 157362120. Its totient is φ = 26227016.

The previous prime is 78681041. The next prime is 78681067. The reversal of 78681054 is 45018687.

It is an interprime number because it is at equal distance from previous prime (78681041) and next prime (78681067).

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

78681054 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, 6556749 + ... + 6556760.

It is an arithmetic number, because the mean of its divisors is an integer number (19670265).

Almost surely, 2^78681054 is an apocalyptic number.

78681054 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.

78681054 is a wasteful number, since it uses less digits than its factorization.

78681054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13113514.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 78681054 is about 8870.2341569995. The cubic root of 78681054 is about 428.5058181149.

The spelling of 78681054 in words is "seventy-eight million, six hundred eighty-one thousand, fifty-four".