7966321077 has 16 divisors (see below), whose sum is σ = 12478713408. Its totient is φ = 4456682880.

The previous prime is 7966321063. The next prime is 7966321117. The reversal of 7966321077 is 7701236697.

It is not a de Polignac number, because 7966321077 - 2⁴ = 7966321061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7966321177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9284328 + ... + 9285185.

It is an arithmetic number, because the mean of its divisors is an integer number (779919588).

Almost surely, 2^7966321077 is an apocalyptic number.

It is an amenable number.

7966321077 is a deficient number, since it is larger than the sum of its proper divisors (4512392331).

7966321077 is a wasteful number, since it uses less digits than its factorization.

7966321077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18569540.

The product of its (nonzero) digits is 666792, while the sum is 48.

The square root of 7966321077 is about 89254.2496299196. The cubic root of 7966321077 is about 1997.1894754091.

The spelling of 7966321077 in words is "seven billion, nine hundred sixty-six million, three hundred twenty-one thousand, seventy-seven".