77839964103 has 64 divisors (see below), whose sum is σ = 117905080320. Its totient is φ = 45270403200.

The previous prime is 77839964087. The next prime is 77839964131. The reversal of 77839964103 is 30146993877.

It is not a de Polignac number, because 77839964103 - 2⁴ = 77839964087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77839964143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23795358 + ... + 23798628.

It is an arithmetic number, because the mean of its divisors is an integer number (1842266880).

Almost surely, 2^77839964103 is an apocalyptic number.

77839964103 is a deficient number, since it is larger than the sum of its proper divisors (40065116217).

77839964103 is a wasteful number, since it uses less digits than its factorization.

77839964103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3628.

The product of its (nonzero) digits is 6858432, while the sum is 57.

The spelling of 77839964103 in words is "seventy-seven billion, eight hundred thirty-nine million, nine hundred sixty-four thousand, one hundred three".