1250139012650 has 48 divisors (see below), whose sum is σ = 2545303527648. Its totient is φ = 453044424000.

The previous prime is 1250139012631. The next prime is 1250139012653. The reversal of 1250139012650 is 562109310521.

It is a self number, because there is not a number n which added to its sum of digits gives 1250139012650.

It is not an unprimeable number, because it can be changed into a prime (1250139012653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3717656 + ... + 4039955.

It is an arithmetic number, because the mean of its divisors is an integer number (53027156826).

Almost surely, 2^{1250139012650} is an apocalyptic number.

1250139012650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1250139012650 is an abundant number, since it is smaller than the sum of its proper divisors (1295164514998).

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

1250139012650 is a wasteful number, since it uses less digits than its factorization.

1250139012650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7757927 (or 7757922 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 35.

The spelling of 1250139012650 in words is "one trillion, two hundred fifty billion, one hundred thirty-nine million, twelve thousand, six hundred fifty".