77800470560465 has 8 divisors (see below), whose sum is σ = 93360642052608. Its totient is φ = 62240324861680.

The previous prime is 77800470560383. The next prime is 77800470560551. The reversal of 77800470560465 is 56406507400877.

It is a happy number.

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

It is not a de Polignac number, because 77800470560465 - 2¹⁸ = 77800470298321 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 961610 + ... + 12511020.

It is an arithmetic number, because the mean of its divisors is an integer number (11670080256576).

Almost surely, 2^{77800470560465} is an apocalyptic number.

It is an amenable number.

77800470560465 is a deficient number, since it is larger than the sum of its proper divisors (15560171492143).

77800470560465 is a wasteful number, since it uses less digits than its factorization.

77800470560465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12896679.

The product of its (nonzero) digits is 39513600, while the sum is 59.

The spelling of 77800470560465 in words is "seventy-seven trillion, eight hundred billion, four hundred seventy million, five hundred sixty thousand, four hundred sixty-five".