126702971279 has 4 divisors (see below), whose sum is σ = 126736663680. Its totient is φ = 126669278880.

The previous prime is 126702971267. The next prime is 126702971281. The reversal of 126702971279 is 972179207621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126702971279 - 2⁸ = 126702971023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126702971279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126702971179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16840559 + ... + 16848080.

It is an arithmetic number, because the mean of its divisors is an integer number (31684165920).

Almost surely, 2^126702971279 is an apocalyptic number.

126702971279 is a deficient number, since it is larger than the sum of its proper divisors (33692401).

126702971279 is an equidigital number, since it uses as much as digits as its factorization.

126702971279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33692400.

The product of its (nonzero) digits is 1333584, while the sum is 53.

The spelling of 126702971279 in words is "one hundred twenty-six billion, seven hundred two million, nine hundred seventy-one thousand, two hundred seventy-nine".