126863291280 has 80 divisors (see below), whose sum is σ = 429028593984. Its totient is φ = 30754736640.

The previous prime is 126863291263. The next prime is 126863291353. The reversal of 126863291280 is 82192368621.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24024499 + ... + 24029778.

Almost surely, 2^126863291280 is an apocalyptic number.

126863291280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126863291280 is an abundant number, since it is smaller than the sum of its proper divisors (302165302704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126863291280 is a wasteful number, since it uses less digits than its factorization.

126863291280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48054304 (or 48054298 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The spelling of 126863291280 in words is "one hundred twenty-six billion, eight hundred sixty-three million, two hundred ninety-one thousand, two hundred eighty".