77132463923 has 4 divisors (see below), whose sum is σ = 78439793880. Its totient is φ = 75825133968.

The previous prime is 77132463883. The next prime is 77132463953. The reversal of 77132463923 is 32936423177.

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

It is a cyclic number.

It is not a de Polignac number, because 77132463923 - 2¹⁸ = 77132201779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77132463953) 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, 653664890 + ... + 653665007.

It is an arithmetic number, because the mean of its divisors is an integer number (19609948470).

Almost surely, 2^77132463923 is an apocalyptic number.

77132463923 is a deficient number, since it is larger than the sum of its proper divisors (1307329957).

77132463923 is a wasteful number, since it uses less digits than its factorization.

77132463923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307329956.

The product of its digits is 1143072, while the sum is 47.

The spelling of 77132463923 in words is "seventy-seven billion, one hundred thirty-two million, four hundred sixty-three thousand, nine hundred twenty-three".