15140120439979 has 2 divisors, whose sum is σ = 15140120439980. Its totient is φ = 15140120439978.

The previous prime is 15140120439967. The next prime is 15140120440031. The reversal of 15140120439979 is 97993402104151.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15140120439979 - 2²³ = 15140112051371 is a prime.

It is not a weakly prime, because it can be changed into another prime (15140120439919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7570060219989 + 7570060219990.

It is an arithmetic number, because the mean of its divisors is an integer number (7570060219990).

Almost surely, 2^{15140120439979} is an apocalyptic number.

15140120439979 is a deficient number, since it is larger than the sum of its proper divisors (1).

15140120439979 is an equidigital number, since it uses as much as digits as its factorization.

15140120439979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440, while the sum is 55.

The spelling of 15140120439979 in words is "fifteen trillion, one hundred forty billion, one hundred twenty million, four hundred thirty-nine thousand, nine hundred seventy-nine".