4026812549 has 4 divisors (see below), whose sum is σ = 4156709760. Its totient is φ = 3896915340.

The previous prime is 4026812521. The next prime is 4026812563. The reversal of 4026812549 is 9452186204.

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 4026812549 - 2¹⁶ = 4026747013 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 (4026812579) 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, 64948559 + ... + 64948620.

It is an arithmetic number, because the mean of its divisors is an integer number (1039177440).

Almost surely, 2^4026812549 is an apocalyptic number.

It is an amenable number.

4026812549 is a deficient number, since it is larger than the sum of its proper divisors (129897211).

4026812549 is a wasteful number, since it uses less digits than its factorization.

4026812549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129897210.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 4026812549 is about 63457.1709816944. The cubic root of 4026812549 is about 1590.9400120366.

The spelling of 4026812549 in words is "four billion, twenty-six million, eight hundred twelve thousand, five hundred forty-nine".