1992854582947 has 4 divisors (see below), whose sum is σ = 2097741666280. Its totient is φ = 1887967499616.

The previous prime is 1992854582893. The next prime is 1992854582993. The reversal of 1992854582947 is 7492854582991.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1992854582947 - 2¹⁵ = 1992854550179 is a prime.

It is a super-2 number, since 2×1992854582947² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1992854582947.

It is not an unprimeable number, because it can be changed into a prime (1992854582647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52443541638 + ... + 52443541675.

It is an arithmetic number, because the mean of its divisors is an integer number (524435416570).

Almost surely, 2^{1992854582947} is an apocalyptic number.

1992854582947 is a deficient number, since it is larger than the sum of its proper divisors (104887083333).

1992854582947 is a wasteful number, since it uses less digits than its factorization.

1992854582947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104887083332.

The product of its digits is 522547200, while the sum is 73.

The spelling of 1992854582947 in words is "one trillion, nine hundred ninety-two billion, eight hundred fifty-four million, five hundred eighty-two thousand, nine hundred forty-seven".