1251425440200 has 96 divisors (see below), whose sum is σ = 4177835726400. Its totient is φ = 308043183360.

The previous prime is 1251425440189. The next prime is 1251425440201. The reversal of 1251425440200 is 20445241521.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1251425440201) 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, 80211780 + ... + 80227379.

It is an arithmetic number, because the mean of its divisors is an integer number (43519122150).

Almost surely, 2^{1251425440200} is an apocalyptic number.

1251425440200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1251425440200 is an abundant number, since it is smaller than the sum of its proper divisors (2926410286200).

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

1251425440200 is a wasteful number, since it uses less digits than its factorization.

1251425440200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160439191 (or 160439182 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The spelling of 1251425440200 in words is "one trillion, two hundred fifty-one billion, four hundred twenty-five million, four hundred forty thousand, two hundred".