2042543651 has 8 divisors (see below), whose sum is σ = 2063489904. Its totient is φ = 2021632000.

The previous prime is 2042543623. The next prime is 2042543653. The reversal of 2042543651 is 1563452402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2042543651 - 2¹⁰ = 2042542627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2042543653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119651 + ... + 135651.

It is an arithmetic number, because the mean of its divisors is an integer number (257936238).

Almost surely, 2^2042543651 is an apocalyptic number.

2042543651 is a deficient number, since it is larger than the sum of its proper divisors (20946253).

2042543651 is a wasteful number, since it uses less digits than its factorization.

2042543651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17301.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 2042543651 is about 45194.5090801969. The cubic root of 2042543651 is about 1268.7920502261.

The spelling of 2042543651 in words is "two billion, forty-two million, five hundred forty-three thousand, six hundred fifty-one".