77734842880757 has 4 divisors (see below), whose sum is σ = 77735205213696. Its totient is φ = 77734480547820.

The previous prime is 77734842880699. The next prime is 77734842880771. The reversal of 77734842880757 is 75708824843777.

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.

It is a cyclic number.

It is not a de Polignac number, because 77734842880757 - 2¹⁴ = 77734842864373 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 (77734842880787) 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, 180844469 + ... + 181273802.

It is an arithmetic number, because the mean of its divisors is an integer number (19433801303424).

Almost surely, 2^{77734842880757} is an apocalyptic number.

It is an amenable number.

77734842880757 is a deficient number, since it is larger than the sum of its proper divisors (362332939).

77734842880757 is a wasteful number, since it uses less digits than its factorization.

77734842880757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362332938.

The product of its (nonzero) digits is 4130488320, while the sum is 77.

The spelling of 77734842880757 in words is "seventy-seven trillion, seven hundred thirty-four billion, eight hundred forty-two million, eight hundred eighty thousand, seven hundred fifty-seven".