77707404465 has 8 divisors (see below), whose sum is σ = 124331847168. Its totient is φ = 41443949040.

The previous prime is 77707404443. The next prime is 77707404473. The reversal of 77707404465 is 56440470777.

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

It is not a de Polignac number, because 77707404465 - 2¹² = 77707400369 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2590246801 + ... + 2590246830.

It is an arithmetic number, because the mean of its divisors is an integer number (15541480896).

Almost surely, 2^77707404465 is an apocalyptic number.

It is an amenable number.

77707404465 is a deficient number, since it is larger than the sum of its proper divisors (46624442703).

77707404465 is a wasteful number, since it uses less digits than its factorization.

77707404465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5180493639.

The product of its (nonzero) digits is 4609920, while the sum is 51.

The spelling of 77707404465 in words is "seventy-seven billion, seven hundred seven million, four hundred four thousand, four hundred sixty-five".