77901930933 has 4 divisors (see below), whose sum is σ = 103869241248. Its totient is φ = 51934620620.

The previous prime is 77901930919. The next prime is 77901930943. The reversal of 77901930933 is 33903910977.

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 77901930933 - 2⁴ = 77901930917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77901930943) 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, 12983655153 + ... + 12983655158.

It is an arithmetic number, because the mean of its divisors is an integer number (25967310312).

Almost surely, 2^77901930933 is an apocalyptic number.

It is an amenable number.

77901930933 is a deficient number, since it is larger than the sum of its proper divisors (25967310315).

77901930933 is a wasteful number, since it uses less digits than its factorization.

77901930933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25967310314.

The product of its (nonzero) digits is 964467, while the sum is 51.

The spelling of 77901930933 in words is "seventy-seven billion, nine hundred one million, nine hundred thirty thousand, nine hundred thirty-three".