1251082800730 has 64 divisors (see below), whose sum is σ = 2607299435520. Its totient is φ = 423367225344.

The previous prime is 1251082800727. The next prime is 1251082800733. The reversal of 1251082800730 is 370082801521.

It is an interprime number because it is at equal distance from previous prime (1251082800727) and next prime (1251082800733).

It is a self number, because there is not a number n which added to its sum of digits gives 1251082800730.

It is not an unprimeable number, because it can be changed into a prime (1251082800733) 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, 1559602 + ... + 2221378.

It is an arithmetic number, because the mean of its divisors is an integer number (40739053680).

Almost surely, 2^{1251082800730} is an apocalyptic number.

1251082800730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1251082800730 is an abundant number, since it is smaller than the sum of its proper divisors (1356216634790).

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

1251082800730 is a wasteful number, since it uses less digits than its factorization.

1251082800730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662143.

The product of its (nonzero) digits is 26880, while the sum is 37.

The spelling of 1251082800730 in words is "one trillion, two hundred fifty-one billion, eighty-two million, eight hundred thousand, seven hundred thirty".