139907678929 has 2 divisors, whose sum is σ = 139907678930. Its totient is φ = 139907678928.

The previous prime is 139907678921. The next prime is 139907679019. The reversal of 139907678929 is 929876709931.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113199948304 + 26707730625 = 336452^2 + 163425^2 .

It is a cyclic number.

It is not a de Polignac number, because 139907678929 - 2³ = 139907678921 is a prime.

It is not a weakly prime, because it can be changed into another prime (139907678921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69953839464 + 69953839465.

It is an arithmetic number, because the mean of its divisors is an integer number (69953839465).

Almost surely, 2^139907678929 is an apocalyptic number.

It is an amenable number.

139907678929 is a deficient number, since it is larger than the sum of its proper divisors (1).

139907678929 is an equidigital number, since it uses as much as digits as its factorization.

139907678929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92588832, while the sum is 70.

The spelling of 139907678929 in words is "one hundred thirty-nine billion, nine hundred seven million, six hundred seventy-eight thousand, nine hundred twenty-nine".