1992646653 has 64 divisors (see below), whose sum is σ = 3015677952. Its totient is φ = 1163796480.

The previous prime is 1992646651. The next prime is 1992646657. The reversal of 1992646653 is 3566462991.

It is not a de Polignac number, because 1992646653 - 2¹ = 1992646651 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 1992646596 and 1992646605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992646651) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9443718 + ... + 9443928.

It is an arithmetic number, because the mean of its divisors is an integer number (47119968).

Almost surely, 2^1992646653 is an apocalyptic number.

It is an amenable number.

1992646653 is a deficient number, since it is larger than the sum of its proper divisors (1023031299).

1992646653 is a wasteful number, since it uses less digits than its factorization.

1992646653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434.

The product of its digits is 2099520, while the sum is 51.

The square root of 1992646653 is about 44639.0709244715. The cubic root of 1992646653 is about 1258.3750475166.

The spelling of 1992646653 in words is "one billion, nine hundred ninety-two million, six hundred forty-six thousand, six hundred fifty-three".