1021285898316 has 18 divisors (see below), whose sum is σ = 2581583798612. Its totient is φ = 340428632760.

The previous prime is 1021285898299. The next prime is 1021285898351. The reversal of 1021285898316 is 6138985821201.

1021285898316 is a `hidden beast` number, since 1 + 0 + 2 + 1 + 28 + 589 + 8 + 31 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14184526330 + ... + 14184526401.

Almost surely, 2^{1021285898316} is an apocalyptic number.

It is an amenable number.

1021285898316 is an abundant number, since it is smaller than the sum of its proper divisors (1560297900296).

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

1021285898316 is a wasteful number, since it uses less digits than its factorization.

1021285898316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28369052741 (or 28369052736 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 54.

The spelling of 1021285898316 in words is "one trillion, twenty-one billion, two hundred eighty-five million, eight hundred ninety-eight thousand, three hundred sixteen".