2192869335556 has 81 divisors (see below), whose sum is σ = 4003935397749. Its totient is φ = 1050847193088.

The previous prime is 2192869335521. The next prime is 2192869335557. The reversal of 2192869335556 is 6555339682912.

The square root of 2192869335556 is 1480834.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2158871876100 + 33997459456 = 1469310^2 + 184384^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2192869335557) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 8532565380 + ... + 8532565636.

Almost surely, 2^{2192869335556} is an apocalyptic number.

2192869335556 is the 1480834-th square number.

It is an amenable number.

2192869335556 is a deficient number, since it is larger than the sum of its proper divisors (1811066062193).

2192869335556 is an frugal number, since it uses more digits than its factorization.

2192869335556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738 (or 369 counting only the distinct ones).

The product of its digits is 104976000, while the sum is 64.

Multiplying 2192869335556 by its sum of digits (64), we get a square (140343637475584 = 11846672²).

The spelling of 2192869335556 in words is "two trillion, one hundred ninety-two billion, eight hundred sixty-nine million, three hundred thirty-five thousand, five hundred fifty-six".