77730032646215 has 8 divisors (see below), whose sum is σ = 93647656862928. Its totient is φ = 61936280992000.

The previous prime is 77730032646169. The next prime is 77730032646221. The reversal of 77730032646215 is 51264623003777.

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

It is not a de Polignac number, because 77730032646215 - 2³⁰ = 77728958904391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30968139242 + ... + 30968141751.

It is an arithmetic number, because the mean of its divisors is an integer number (11705957107866).

Almost surely, 2^{77730032646215} is an apocalyptic number.

77730032646215 is a deficient number, since it is larger than the sum of its proper divisors (15917624216713).

77730032646215 is a wasteful number, since it uses less digits than its factorization.

77730032646215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61936281249.

The product of its (nonzero) digits is 8890560, while the sum is 53.

The spelling of 77730032646215 in words is "seventy-seven trillion, seven hundred thirty billion, thirty-two million, six hundred forty-six thousand, two hundred fifteen".