7997395494 has 16 divisors (see below), whose sum is σ = 17448863040. Its totient is φ = 2423453160.

The previous prime is 7997395489. The next prime is 7997395517. The reversal of 7997395494 is 4945937997.

It is a Harshad number since it is a multiple of its sum of digits (66), and also a Moran number because the ratio is a prime number: 121172659 = 7997395494 / (7 + 9 + 9 + 7 + 3 + 9 + 5 + 4 + 9 + 4).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60586264 + ... + 60586395.

It is an arithmetic number, because the mean of its divisors is an integer number (1090553940).

Almost surely, 2^7997395494 is an apocalyptic number.

7997395494 is an abundant number, since it is smaller than the sum of its proper divisors (9451467546).

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

7997395494 is a wasteful number, since it uses less digits than its factorization.

7997395494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121172675.

The product of its digits is 77157360, while the sum is 66.

The square root of 7997395494 is about 89428.1582836189. The cubic root of 7997395494 is about 1999.7829342754.

The spelling of 7997395494 in words is "seven billion, nine hundred ninety-seven million, three hundred ninety-five thousand, four hundred ninety-four".