2045421511 has 16 divisors (see below), whose sum is σ = 2361784320. Its totient is φ = 1735191360.

The previous prime is 2045421479. The next prime is 2045421541. The reversal of 2045421511 is 1151245402.

It is not a de Polignac number, because 2045421511 - 2⁵ = 2045421479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045421541) 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, 275731 + ... + 283051.

It is an arithmetic number, because the mean of its divisors is an integer number (147611520).

Almost surely, 2^2045421511 is an apocalyptic number.

2045421511 is a deficient number, since it is larger than the sum of its proper divisors (316362809).

2045421511 is a wasteful number, since it uses less digits than its factorization.

2045421511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7734.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 2045421511 is about 45226.3364755537. The cubic root of 2045421511 is about 1269.3876625215.

Adding to 2045421511 its reverse (1151245402), we get a palindrome (3196666913).

The spelling of 2045421511 in words is "two billion, forty-five million, four hundred twenty-one thousand, five hundred eleven".