7978295085 has 32 divisors (see below), whose sum is σ = 13470001920. Its totient is φ = 4024339968.

The previous prime is 7978295027. The next prime is 7978295113. The reversal of 7978295085 is 5805928797.

It is not a de Polignac number, because 7978295085 - 2⁶ = 7978295021 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99214 + ... + 160623.

It is an arithmetic number, because the mean of its divisors is an integer number (420937560).

Almost surely, 2^7978295085 is an apocalyptic number.

It is an amenable number.

7978295085 is a deficient number, since it is larger than the sum of its proper divisors (5491706835).

7978295085 is a wasteful number, since it uses less digits than its factorization.

7978295085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259957.

The product of its (nonzero) digits is 12700800, while the sum is 60.

The square root of 7978295085 is about 89321.3025263291. The cubic root of 7978295085 is about 1998.1896188378.

The spelling of 7978295085 in words is "seven billion, nine hundred seventy-eight million, two hundred ninety-five thousand, eighty-five".