1142637481856 has 32 divisors (see below), whose sum is σ = 2451451812600. Its totient is φ = 527371144704.

The previous prime is 1142637481819. The next prime is 1142637481907. The reversal of 1142637481856 is 6581847362411.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

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, 343338926 + ... + 343342253.

Almost surely, 2^{1142637481856} is an apocalyptic number.

1142637481856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1142637481856 is an abundant number, since it is smaller than the sum of its proper divisors (1308814330744).

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

1142637481856 is an equidigital number, since it uses as much as digits as its factorization.

1142637481856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686681206 (or 686681194 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 56.

The spelling of 1142637481856 in words is "one trillion, one hundred forty-two billion, six hundred thirty-seven million, four hundred eighty-one thousand, eight hundred fifty-six".