1143987560172 has 60 divisors (see below), whose sum is σ = 3148009969720. Its totient is φ = 361259227584.

The previous prime is 1143987560141. The next prime is 1143987560227. The reversal of 1143987560172 is 2710657893411.

1143987560172 is a `hidden beast` number, since 1 + 1 + 4 + 3 + 9 + 8 + 7 + 560 + 1 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 92910313 + ... + 92922624.

It is a 1-persistent number, because it is pandigital, but 2⋅1143987560172 = 2287975120344 is not.

Almost surely, 2^{1143987560172} is an apocalyptic number.

1143987560172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1143987560172 is an abundant number, since it is smaller than the sum of its proper divisors (2004022409548).

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

1143987560172 is a wasteful number, since it uses less digits than its factorization.

1143987560172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185832972 (or 185832961 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 54.

The spelling of 1143987560172 in words is "one trillion, one hundred forty-three billion, nine hundred eighty-seven million, five hundred sixty thousand, one hundred seventy-two".