126751490863 has 4 divisors (see below), whose sum is σ = 126761516280. Its totient is φ = 126741465448.

The previous prime is 126751490849. The next prime is 126751490893. The reversal of 126751490863 is 368094157621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 368094157621 = 43 ⋅8560329247.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126751490863 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 126751490863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126751490893) 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, 4993720 + ... + 5019037.

It is an arithmetic number, because the mean of its divisors is an integer number (31690379070).

It is a 1-persistent number, because it is pandigital, but 2⋅126751490863 = 253502981726 is not.

Almost surely, 2^126751490863 is an apocalyptic number.

126751490863 is a deficient number, since it is larger than the sum of its proper divisors (10025417).

126751490863 is a wasteful number, since it uses less digits than its factorization.

126751490863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10025416.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 126751490863 in words is "one hundred twenty-six billion, seven hundred fifty-one million, four hundred ninety thousand, eight hundred sixty-three".