51380088139 has 2 divisors, whose sum is σ = 51380088140. Its totient is φ = 51380088138.

The previous prime is 51380088119. The next prime is 51380088157. The reversal of 51380088139 is 93188008315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51380088139 - 2¹⁷ = 51379957067 is a prime.

It is not a weakly prime, because it can be changed into another prime (51380088119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25690044069 + 25690044070.

It is an arithmetic number, because the mean of its divisors is an integer number (25690044070).

Almost surely, 2^51380088139 is an apocalyptic number.

51380088139 is a deficient number, since it is larger than the sum of its proper divisors (1).

51380088139 is an equidigital number, since it uses as much as digits as its factorization.

51380088139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 46.

The spelling of 51380088139 in words is "fifty-one billion, three hundred eighty million, eighty-eight thousand, one hundred thirty-nine".