2745724858 has 4 divisors (see below), whose sum is σ = 4118587290. Its totient is φ = 1372862428.

The previous prime is 2745724853. The next prime is 2745724867. The reversal of 2745724858 is 8584275472.

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

It can be written as a sum of positive squares in only one way, i.e., 2192393329 + 553331529 = 46823^2 + 23523^2 .

It is not an unprimeable number, because it can be changed into a prime (2745724853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686431213 + ... + 686431216.

Almost surely, 2^2745724858 is an apocalyptic number.

2745724858 is a deficient number, since it is larger than the sum of its proper divisors (1372862432).

2745724858 is a wasteful number, since it uses less digits than its factorization.

2745724858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372862431.

The product of its digits is 5017600, while the sum is 52.

The square root of 2745724858 is about 52399.6646744996. The cubic root of 2745724858 is about 1400.2932817543.

The spelling of 2745724858 in words is "two billion, seven hundred forty-five million, seven hundred twenty-four thousand, eight hundred fifty-eight".