77701603117 has 4 divisors (see below), whose sum is σ = 77745086496. Its totient is φ = 77658119740.

The previous prime is 77701603093. The next prime is 77701603229. The reversal of 77701603117 is 71130610777.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71130610777 = 14159 ⋅5023703.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77701603117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77701603117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77701003117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21739009 + ... + 21742582.

It is an arithmetic number, because the mean of its divisors is an integer number (19436271624).

Almost surely, 2^77701603117 is an apocalyptic number.

It is an amenable number.

77701603117 is a deficient number, since it is larger than the sum of its proper divisors (43483379).

77701603117 is a wasteful number, since it uses less digits than its factorization.

77701603117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43483378.

The product of its (nonzero) digits is 43218, while the sum is 40.

The spelling of 77701603117 in words is "seventy-seven billion, seven hundred one million, six hundred three thousand, one hundred seventeen".