7855981014 has 32 divisors (see below), whose sum is σ = 18250903296. Its totient is φ = 2207769120.

The previous prime is 7855980997. The next prime is 7855981037. The reversal of 7855981014 is 4101895587.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1530612 + ... + 1535735.

It is an arithmetic number, because the mean of its divisors is an integer number (570340728).

Almost surely, 2^7855981014 is an apocalyptic number.

7855981014 is an abundant number, since it is smaller than the sum of its proper divisors (10394922282).

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

7855981014 is a wasteful number, since it uses less digits than its factorization.

7855981014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3066420.

The product of its (nonzero) digits is 403200, while the sum is 48.

The square root of 7855981014 is about 88633.9721213035. The cubic root of 7855981014 is about 1987.9256698010.

The spelling of 7855981014 in words is "seven billion, eight hundred fifty-five million, nine hundred eighty-one thousand, fourteen".