126042010640 has 160 divisors (see below), whose sum is σ = 381890557440. Its totient is φ = 37543698432.

The previous prime is 126042010639. The next prime is 126042010649. The reversal of 126042010640 is 46010240621.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (126042010649) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 385460 + ... + 632979.

It is an arithmetic number, because the mean of its divisors is an integer number (2386815984).

Almost surely, 2^126042010640 is an apocalyptic number.

126042010640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126042010640 is an abundant number, since it is smaller than the sum of its proper divisors (255848546800).

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

126042010640 is a wasteful number, since it uses less digits than its factorization.

126042010640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018489 (or 1018483 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The spelling of 126042010640 in words is "one hundred twenty-six billion, forty-two million, ten thousand, six hundred forty".