77318701157 has 8 divisors (see below), whose sum is σ = 80939813760. Its totient is φ = 73719207760.

The previous prime is 77318701153. The next prime is 77318701169. The reversal of 77318701157 is 75110781377.

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

It is a cyclic number.

It is not a de Polignac number, because 77318701157 - 2² = 77318701153 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77318701153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5397482 + ... + 5411787.

It is an arithmetic number, because the mean of its divisors is an integer number (10117476720).

Almost surely, 2^77318701157 is an apocalyptic number.

It is an amenable number.

77318701157 is a deficient number, since it is larger than the sum of its proper divisors (3621112603).

77318701157 is a wasteful number, since it uses less digits than its factorization.

77318701157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10809603.

The product of its (nonzero) digits is 288120, while the sum is 47.

The spelling of 77318701157 in words is "seventy-seven billion, three hundred eighteen million, seven hundred one thousand, one hundred fifty-seven".