56787633139 has 2 divisors, whose sum is σ = 56787633140. Its totient is φ = 56787633138.

The previous prime is 56787633107. The next prime is 56787633151. The reversal of 56787633139 is 93133678765.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56787633139 - 2⁵ = 56787633107 is a prime.

It is not a weakly prime, because it can be changed into another prime (56787633179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28393816569 + 28393816570.

It is an arithmetic number, because the mean of its divisors is an integer number (28393816570).

Almost surely, 2^56787633139 is an apocalyptic number.

56787633139 is a deficient number, since it is larger than the sum of its proper divisors (1).

56787633139 is an equidigital number, since it uses as much as digits as its factorization.

56787633139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17146080, while the sum is 58.

The spelling of 56787633139 in words is "fifty-six billion, seven hundred eighty-seven million, six hundred thirty-three thousand, one hundred thirty-nine".