1009866883372 has 48 divisors (see below), whose sum is σ = 1894188209760. Its totient is φ = 469401818112.

The previous prime is 1009866883339. The next prime is 1009866883373. The reversal of 1009866883372 is 2733886689001.

It is a super-2 number, since 2×1009866883372² (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 1009866883372.

It is not an unprimeable number, because it can be changed into a prime (1009866883373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29314654 + ... + 29349082.

It is an arithmetic number, because the mean of its divisors is an integer number (39462254370).

Almost surely, 2^{1009866883372} is an apocalyptic number.

It is an amenable number.

1009866883372 is a deficient number, since it is larger than the sum of its proper divisors (884321326388).

1009866883372 is a wasteful number, since it uses less digits than its factorization.

1009866883372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39730 (or 39728 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 61.

The spelling of 1009866883372 in words is "one trillion, nine billion, eight hundred sixty-six million, eight hundred eighty-three thousand, three hundred seventy-two".