77954386233 has 4 divisors (see below), whose sum is σ = 103939181648. Its totient is φ = 51969590820.

The previous prime is 77954386231. The next prime is 77954386247. The reversal of 77954386233 is 33268345977.

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 not a de Polignac number, because 77954386233 - 2¹ = 77954386231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77954386231) 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, 12992397703 + ... + 12992397708.

It is an arithmetic number, because the mean of its divisors is an integer number (25984795412).

Almost surely, 2^77954386233 is an apocalyptic number.

It is an amenable number.

77954386233 is a deficient number, since it is larger than the sum of its proper divisors (25984795415).

77954386233 is a wasteful number, since it uses less digits than its factorization.

77954386233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25984795414.

The product of its digits is 22861440, while the sum is 57.

The spelling of 77954386233 in words is "seventy-seven billion, nine hundred fifty-four million, three hundred eighty-six thousand, two hundred thirty-three".