1148961489920 has 44 divisors (see below), whose sum is σ = 2756161148844. Its totient is φ = 459584593920.

The previous prime is 1148961489913. The next prime is 1148961489931. The reversal of 1148961489920 is 299841698411.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 907401035776 + 241560454144 = 952576^2 + 491488^2 .

It is a super-2 number, since 2×1148961489920² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112198151 + ... + 112208390.

Almost surely, 2^{1148961489920} is an apocalyptic number.

1148961489920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1148961489920 is an abundant number, since it is smaller than the sum of its proper divisors (1607199658924).

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

1148961489920 is an equidigital number, since it uses as much as digits as its factorization.

1148961489920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224406566 (or 224406548 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 62.

The spelling of 1148961489920 in words is "one trillion, one hundred forty-eight billion, nine hundred sixty-one million, four hundred eighty-nine thousand, nine hundred twenty".