1157894842240 has 64 divisors (see below), whose sum is σ = 2768229477360. Its totient is φ = 463134994432.

The previous prime is 1157894842229. The next prime is 1157894842367. The reversal of 1157894842240 is 422484987511.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 19626867 + ... + 19685773.

Almost surely, 2^{1157894842240} is an apocalyptic number.

1157894842240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1157894842240 is an abundant number, since it is smaller than the sum of its proper divisors (1610334635120).

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

1157894842240 is an equidigital number, since it uses as much as digits as its factorization.

1157894842240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89639 (or 89627 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 55.

The spelling of 1157894842240 in words is "one trillion, one hundred fifty-seven billion, eight hundred ninety-four million, eight hundred forty-two thousand, two hundred forty".