1022797617408 has 216 divisors, whose sum is σ = 3372943392000. Its totient is φ = 291995246592.

The previous prime is 1022797617349. The next prime is 1022797617419. The reversal of 1022797617408 is 8047167972201.

1022797617408 is a `hidden beast` number, since 1 + 0 + 227 + 9 + 7 + 6 + 1 + 7 + 408 = 666.

It is a super-2 number, since 2×1022797617408² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20764393 + ... + 20813591.

Almost surely, 2^{1022797617408} is an apocalyptic number.

1022797617408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1022797617408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1686471696000).

1022797617408 is an abundant number, since it is smaller than the sum of its proper divisors (2350145774592).

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

1022797617408 is a wasteful number, since it uses less digits than its factorization.

1022797617408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50517 (or 50500 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 54.

The spelling of 1022797617408 in words is "one trillion, twenty-two billion, seven hundred ninety-seven million, six hundred seventeen thousand, four hundred eight".