77734844613703 has 4 divisors (see below), whose sum is σ = 78718829988640. Its totient is φ = 76750859238768.

The previous prime is 77734844613697. The next prime is 77734844613707. The reversal of 77734844613703 is 30731644843777.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77734844613703 is a prime.

It is a super-2 number, since 2×77734844613703² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77734844613707) 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, 491992687350 + ... + 491992687507.

It is an arithmetic number, because the mean of its divisors is an integer number (19679707497160).

Almost surely, 2^{77734844613703} is an apocalyptic number.

77734844613703 is a deficient number, since it is larger than the sum of its proper divisors (983985374937).

77734844613703 is an equidigital number, since it uses as much as digits as its factorization.

77734844613703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983985374936.

The product of its (nonzero) digits is 199148544, while the sum is 64.

The spelling of 77734844613703 in words is "seventy-seven trillion, seven hundred thirty-four billion, eight hundred forty-four million, six hundred thirteen thousand, seven hundred three".