77723923941 has 24 divisors (see below), whose sum is σ = 121370701920. Its totient is φ = 47762066016.

The previous prime is 77723923939. The next prime is 77723923957. The reversal of 77723923941 is 14932932777.

It is not a de Polignac number, because 77723923941 - 2¹ = 77723923939 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77723921941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6135915 + ... + 6148568.

It is an arithmetic number, because the mean of its divisors is an integer number (5057112580).

Almost surely, 2^77723923941 is an apocalyptic number.

It is an amenable number.

77723923941 is a deficient number, since it is larger than the sum of its proper divisors (43646777979).

77723923941 is a wasteful number, since it uses less digits than its factorization.

77723923941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12284545 (or 12284542 counting only the distinct ones).

The product of its digits is 4000752, while the sum is 54.

The spelling of 77723923941 in words is "seventy-seven billion, seven hundred twenty-three million, nine hundred twenty-three thousand, nine hundred forty-one".