1022347289772 has 96 divisors (see below), whose sum is σ = 2776791144960. Its totient is φ = 324666936000.

The previous prime is 1022347289753. The next prime is 1022347289783. The reversal of 1022347289772 is 2779827432201.

1022347289772 is a `hidden beast` number, since 1 + 0 + 2 + 23 + 472 + 89 + 7 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196383 + ... + 1443350.

It is an arithmetic number, because the mean of its divisors is an integer number (28924907760).

Almost surely, 2^{1022347289772} is an apocalyptic number.

1022347289772 is a gapful number since it is divisible by the number (12) 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 1022347289772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1388395572480).

1022347289772 is an abundant number, since it is smaller than the sum of its proper divisors (1754443855188).

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

1022347289772 is a wasteful number, since it uses less digits than its factorization.

1022347289772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640020 (or 1640012 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 54.

The spelling of 1022347289772 in words is "one trillion, twenty-two billion, three hundred forty-seven million, two hundred eighty-nine thousand, seven hundred seventy-two".