1000866793272 has 32 divisors (see below), whose sum is σ = 2502192260880. Its totient is φ = 333618894080.

The previous prime is 1000866793271. The next prime is 1000866793273. The reversal of 1000866793272 is 2723976680001.

It is an interprime number because it is at equal distance from previous prime (1000866793271) and next prime (1000866793273).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000866793271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3684388 + ... + 3946700.

Almost surely, 2^{1000866793272} is an apocalyptic number.

1000866793272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1000866793272 is an abundant number, since it is smaller than the sum of its proper divisors (1501325467608).

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

1000866793272 is a wasteful number, since it uses less digits than its factorization.

1000866793272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421303 (or 421299 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 51.

The spelling of 1000866793272 in words is "one trillion, eight hundred sixty-six million, seven hundred ninety-three thousand, two hundred seventy-two".