2192796981 has 16 divisors (see below), whose sum is σ = 3360609600. Its totient is φ = 1411455024.

The previous prime is 2192796967. The next prime is 2192797021. The reversal of 2192796981 is 1896972912.

2192796981 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-2192796981 is a prime.

It is a super-2 number, since 2×2192796981² = 9616717199765428722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2192776981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1399471 + ... + 1401036.

It is an arithmetic number, because the mean of its divisors is an integer number (210038100).

Almost surely, 2^2192796981 is an apocalyptic number.

It is an amenable number.

2192796981 is a deficient number, since it is larger than the sum of its proper divisors (1167812619).

2192796981 is a wasteful number, since it uses less digits than its factorization.

2192796981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800545 (or 2800539 counting only the distinct ones).

The product of its digits is 979776, while the sum is 54.

The square root of 2192796981 is about 46827.3102046231. The cubic root of 2192796981 is about 1299.1704729629.

The spelling of 2192796981 in words is "two billion, one hundred ninety-two million, seven hundred ninety-six thousand, nine hundred eighty-one".