78719151906 has 48 divisors (see below), whose sum is σ = 184110788160. Its totient is φ = 24233378400.

The previous prime is 78719151887. The next prime is 78719151941. The reversal of 78719151906 is 60915191787.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3266320 + ... + 3290331.

It is an arithmetic number, because the mean of its divisors is an integer number (3835641420).

Almost surely, 2^78719151906 is an apocalyptic number.

78719151906 is an abundant number, since it is smaller than the sum of its proper divisors (105391636254).

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

78719151906 is a wasteful number, since it uses less digits than its factorization.

78719151906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6556711 (or 6556708 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 54.

The spelling of 78719151906 in words is "seventy-eight billion, seven hundred nineteen million, one hundred fifty-one thousand, nine hundred six".