40108139746879 has 2 divisors, whose sum is σ = 40108139746880. Its totient is φ = 40108139746878.

The previous prime is 40108139746813. The next prime is 40108139746903. The reversal of 40108139746879 is 97864793180104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40108139746879 - 2²³ = 40108131358271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40108134746879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20054069873439 + 20054069873440.

It is an arithmetic number, because the mean of its divisors is an integer number (20054069873440).

Almost surely, 2^{40108139746879} is an apocalyptic number.

40108139746879 is a deficient number, since it is larger than the sum of its proper divisors (1).

40108139746879 is an equidigital number, since it uses as much as digits as its factorization.

40108139746879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 73156608, while the sum is 67.

The spelling of 40108139746879 in words is "forty trillion, one hundred eight billion, one hundred thirty-nine million, seven hundred forty-six thousand, eight hundred seventy-nine".