1017215732828 has 12 divisors (see below), whose sum is σ = 1813714844760. Its totient is φ = 499011491472.

The previous prime is 1017215732759. The next prime is 1017215732861. The reversal of 1017215732828 is 8282375127101.

1017215732828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1017215732828² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2399093498 + ... + 2399093921.

It is an arithmetic number, because the mean of its divisors is an integer number (151142903730).

Almost surely, 2^{1017215732828} is an apocalyptic number.

It is an amenable number.

1017215732828 is a deficient number, since it is larger than the sum of its proper divisors (796499111932).

1017215732828 is a wasteful number, since it uses less digits than its factorization.

1017215732828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4798187476 (or 4798187474 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 47.

The spelling of 1017215732828 in words is "one trillion, seventeen billion, two hundred fifteen million, seven hundred thirty-two thousand, eight hundred twenty-eight".