4538792261 has 4 divisors (see below), whose sum is σ = 4539024000. Its totient is φ = 4538560524.

The previous prime is 4538792249. The next prime is 4538792329. The reversal of 4538792261 is 1622978354.

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 4538792261 - 2²⁶ = 4471683397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4538792161) 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, 83471 + ... + 126668.

It is an arithmetic number, because the mean of its divisors is an integer number (1134756000).

Almost surely, 2^4538792261 is an apocalyptic number.

It is an amenable number.

4538792261 is a deficient number, since it is larger than the sum of its proper divisors (231739).

4538792261 is a wasteful number, since it uses less digits than its factorization.

4538792261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231738.

The product of its digits is 725760, while the sum is 47.

The square root of 4538792261 is about 67370.5593044915. The cubic root of 4538792261 is about 1655.6941026625.

The spelling of 4538792261 in words is "four billion, five hundred thirty-eight million, seven hundred ninety-two thousand, two hundred sixty-one".