1250126954640 has 160 divisors (see below), whose sum is σ = 4307075341440. Its totient is φ = 333283382784.

The previous prime is 1250126954591. The next prime is 1250126954641. The reversal of 1250126954640 is 464596210521.

1250126954640 is a `hidden beast` number, since 1 + 2 + 5 + 0 + 1 + 2 + 69 + 546 + 40 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (1250126954641) 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, 8770179 + ... + 8911581.

It is an arithmetic number, because the mean of its divisors is an integer number (26919220884).

Almost surely, 2^{1250126954640} is an apocalyptic number.

1250126954640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1250126954640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2153537670720).

1250126954640 is an abundant number, since it is smaller than the sum of its proper divisors (3056948386800).

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

1250126954640 is a wasteful number, since it uses less digits than its factorization.

1250126954640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145518 (or 145506 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 1250126954640 in words is "one trillion, two hundred fifty billion, one hundred twenty-six million, nine hundred fifty-four thousand, six hundred forty".