6442952953 has 4 divisors (see below), whose sum is σ = 6782055760. Its totient is φ = 6103850148.

The previous prime is 6442952941. The next prime is 6442952977. The reversal of 6442952953 is 3592592446.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6442952953 - 2²¹ = 6440855801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6442952897 and 6442952906.

It is not an unprimeable number, because it can be changed into a prime (6442952933) 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, 169551375 + ... + 169551412.

It is an arithmetic number, because the mean of its divisors is an integer number (1695513940).

Almost surely, 2^6442952953 is an apocalyptic number.

It is an amenable number.

6442952953 is a deficient number, since it is larger than the sum of its proper divisors (339102807).

6442952953 is a wasteful number, since it uses less digits than its factorization.

6442952953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339102806.

The product of its digits is 2332800, while the sum is 49.

The square root of 6442952953 is about 80268.0070326902. The cubic root of 6442952953 is about 1860.7798164770.

The spelling of 6442952953 in words is "six billion, four hundred forty-two million, nine hundred fifty-two thousand, nine hundred fifty-three".