122400579879671 has 2 divisors, whose sum is σ = 122400579879672. Its totient is φ = 122400579879670.

The previous prime is 122400579879623. The next prime is 122400579879757. The reversal of 122400579879671 is 176978975004221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122400579879671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122400579872671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61200289939835 + 61200289939836.

It is an arithmetic number, because the mean of its divisors is an integer number (61200289939836).

Almost surely, 2^{122400579879671} is an apocalyptic number.

122400579879671 is a deficient number, since it is larger than the sum of its proper divisors (1).

122400579879671 is an equidigital number, since it uses as much as digits as its factorization.

122400579879671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 106686720, while the sum is 68.

The spelling of 122400579879671 in words is "one hundred twenty-two trillion, four hundred billion, five hundred seventy-nine million, eight hundred seventy-nine thousand, six hundred seventy-one".