126400262775 has 24 divisors (see below), whose sum is σ = 221274815184. Its totient is φ = 63447974400.

The previous prime is 126400262689. The next prime is 126400262797. The reversal of 126400262775 is 577262004621.

It is not a de Polignac number, because 126400262775 - 2¹⁰ = 126400261751 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49567456 + ... + 49570005.

It is an arithmetic number, because the mean of its divisors is an integer number (9219783966).

Almost surely, 2^126400262775 is an apocalyptic number.

126400262775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

126400262775 is a deficient number, since it is larger than the sum of its proper divisors (94874552409).

126400262775 is a wasteful number, since it uses less digits than its factorization.

126400262775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99137491 (or 99137486 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 42.

The spelling of 126400262775 in words is "one hundred twenty-six billion, four hundred million, two hundred sixty-two thousand, seven hundred seventy-five".