7977564214 has 8 divisors (see below), whose sum is σ = 12486622320. Its totient is φ = 3815356776.

The previous prime is 7977564197. The next prime is 7977564239. The reversal of 7977564214 is 4124657797.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86712609 + ... + 86712700.

It is an arithmetic number, because the mean of its divisors is an integer number (1560827790).

Almost surely, 2^7977564214 is an apocalyptic number.

7977564214 is a deficient number, since it is larger than the sum of its proper divisors (4509058106).

7977564214 is a wasteful number, since it uses less digits than its factorization.

7977564214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173425334.

The product of its digits is 2963520, while the sum is 52.

The square root of 7977564214 is about 89317.2111857508. The cubic root of 7977564214 is about 1998.1286006451.

The spelling of 7977564214 in words is "seven billion, nine hundred seventy-seven million, five hundred sixty-four thousand, two hundred fourteen".