77903932933 has 2 divisors, whose sum is σ = 77903932934. Its totient is φ = 77903932932.

The previous prime is 77903932927. The next prime is 77903932961. The reversal of 77903932933 is 33923930977.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77792461569 + 111471364 = 278913^2 + 10558^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77903932933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77903932033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38951966466 + 38951966467.

It is an arithmetic number, because the mean of its divisors is an integer number (38951966467).

Almost surely, 2^77903932933 is an apocalyptic number.

It is an amenable number.

77903932933 is a deficient number, since it is larger than the sum of its proper divisors (1).

77903932933 is an equidigital number, since it uses as much as digits as its factorization.

77903932933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5786802, while the sum is 55.

The spelling of 77903932933 in words is "seventy-seven billion, nine hundred three million, nine hundred thirty-two thousand, nine hundred thirty-three".