2261198526 has 64 divisors (see below), whose sum is σ = 4843514880. Its totient is φ = 701291520.

The previous prime is 2261198507. The next prime is 2261198561. The reversal of 2261198526 is 6258911622.

It is a super-2 number, since 2×2261198526² = 10226037547969145352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4947690 + ... + 4948146.

It is an arithmetic number, because the mean of its divisors is an integer number (75679920).

Almost surely, 2^2261198526 is an apocalyptic number.

2261198526 is an abundant number, since it is smaller than the sum of its proper divisors (2582316354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2261198526 is a wasteful number, since it uses less digits than its factorization.

2261198526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929.

The product of its digits is 103680, while the sum is 42.

The square root of 2261198526 is about 47552.0612171544. The cubic root of 2261198526 is about 1312.5410589242.

The spelling of 2261198526 in words is "two billion, two hundred sixty-one million, one hundred ninety-eight thousand, five hundred twenty-six".