126894036240 has 120 divisors (see below), whose sum is σ = 441935964288. Its totient is φ = 33838404480.

The previous prime is 126894036221. The next prime is 126894036251. The reversal of 126894036240 is 42630498621.

126894036240 is a `hidden beast` number, since 12 + 6 + 8 + 9 + 4 + 0 + 3 + 624 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×126894036240² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 3244296 + ... + 3283175.

Almost surely, 2^126894036240 is an apocalyptic number.

126894036240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126894036240 is an abundant number, since it is smaller than the sum of its proper divisors (315041928048).

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

126894036240 is an equidigital number, since it uses as much as digits as its factorization.

126894036240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6527499 (or 6527481 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 126894036240 in words is "one hundred twenty-six billion, eight hundred ninety-four million, thirty-six thousand, two hundred forty".