1142979415872 has 560 divisors, whose sum is σ = 3658672115712. Its totient is φ = 314691578880.

The previous prime is 1142979415867. The next prime is 1142979415901. The reversal of 1142979415872 is 2785149792411.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1538329933 + ... + 1538330675.

Almost surely, 2^{1142979415872} is an apocalyptic number.

1142979415872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1142979415872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1829336057856).

1142979415872 is an abundant number, since it is smaller than the sum of its proper divisors (2515692699840).

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

1142979415872 is an frugal number, since it uses more digits than its factorization.

1142979415872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904 (or 873 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 60.

The spelling of 1142979415872 in words is "one trillion, one hundred forty-two billion, nine hundred seventy-nine million, four hundred fifteen thousand, eight hundred seventy-two".