1142851971272 has 32 divisors (see below), whose sum is σ = 2341298757600. Its totient is φ = 518667724800.

The previous prime is 1142851971263. The next prime is 1142851971293. The reversal of 1142851971272 is 2721791582411.

It is a super-2 number, since 2×1142851971272² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1142851971272.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10073822 + ... + 10186637.

It is an arithmetic number, because the mean of its divisors is an integer number (73165586175).

Almost surely, 2^{1142851971272} is an apocalyptic number.

It is an amenable number.

1142851971272 is an abundant number, since it is smaller than the sum of its proper divisors (1198446786328).

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

1142851971272 is a wasteful number, since it uses less digits than its factorization.

1142851971272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20261117 (or 20261113 counting only the distinct ones).

The product of its digits is 564480, while the sum is 50.

The spelling of 1142851971272 in words is "one trillion, one hundred forty-two billion, eight hundred fifty-one million, nine hundred seventy-one thousand, two hundred seventy-two".