2145026611 has 16 divisors (see below), whose sum is σ = 2641121728. Its totient is φ = 1696464000.

The previous prime is 2145026593. The next prime is 2145026677. The reversal of 2145026611 is 1166205412.

It is not a de Polignac number, because 2145026611 - 2⁵ = 2145026579 is a prime.

It is a super-2 number, since 2×2145026611² = 9202278323796290642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2145026611.

It is not an unprimeable number, because it can be changed into a prime (2145026011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417961 + ... + 423061.

It is an arithmetic number, because the mean of its divisors is an integer number (165070108).

Almost surely, 2^2145026611 is an apocalyptic number.

2145026611 is a deficient number, since it is larger than the sum of its proper divisors (496095117).

2145026611 is a wasteful number, since it uses less digits than its factorization.

2145026611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9742.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2145026611 is about 46314.4319947897. The cubic root of 2145026611 is about 1289.6669234019. Note that the first 3 decimals are identical.

The spelling of 2145026611 in words is "two billion, one hundred forty-five million, twenty-six thousand, six hundred eleven".