139672490887 has 2 divisors, whose sum is σ = 139672490888. Its totient is φ = 139672490886.

The previous prime is 139672490873. The next prime is 139672490899. The reversal of 139672490887 is 788094276931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 139672490887 - 2³¹ = 137525007239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139672499887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69836245443 + 69836245444.

It is an arithmetic number, because the mean of its divisors is an integer number (69836245444).

Almost surely, 2^139672490887 is an apocalyptic number.

139672490887 is a deficient number, since it is larger than the sum of its proper divisors (1).

139672490887 is an equidigital number, since it uses as much as digits as its factorization.

139672490887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36578304, while the sum is 64.

The spelling of 139672490887 in words is "one hundred thirty-nine billion, six hundred seventy-two million, four hundred ninety thousand, eight hundred eighty-seven".