139078787014679 has 2 divisors, whose sum is σ = 139078787014680. Its totient is φ = 139078787014678.

The previous prime is 139078787014603. The next prime is 139078787014747. The reversal of 139078787014679 is 976410787870931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 139078787014679 - 2²⁰ = 139078785966103 is a prime.

It is a super-2 number, since 2×139078787014679² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139078787814679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69539393507339 + 69539393507340.

It is an arithmetic number, because the mean of its divisors is an integer number (69539393507340).

Almost surely, 2^{139078787014679} is an apocalyptic number.

139078787014679 is a deficient number, since it is larger than the sum of its proper divisors (1).

139078787014679 is an equidigital number, since it uses as much as digits as its factorization.

139078787014679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896168448, while the sum is 77.

The spelling of 139078787014679 in words is "one hundred thirty-nine trillion, seventy-eight billion, seven hundred eighty-seven million, fourteen thousand, six hundred seventy-nine".