77291873811 has 16 divisors (see below), whose sum is σ = 116119249920. Its totient is φ = 50802169320.

The previous prime is 77291873767. The next prime is 77291873849. The reversal of 77291873811 is 11837819277.

It is not a de Polignac number, because 77291873811 - 2¹⁰ = 77291872787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77291873891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20157675 + ... + 20161508.

It is an arithmetic number, because the mean of its divisors is an integer number (7257453120).

Almost surely, 2^77291873811 is an apocalyptic number.

77291873811 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

77291873811 is a deficient number, since it is larger than the sum of its proper divisors (38827376109).

77291873811 is a wasteful number, since it uses less digits than its factorization.

77291873811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40319263 (or 40319257 counting only the distinct ones).

The product of its digits is 1185408, while the sum is 54.

The spelling of 77291873811 in words is "seventy-seven billion, two hundred ninety-one million, eight hundred seventy-three thousand, eight hundred eleven".