2541291645 has 32 divisors (see below), whose sum is σ = 4163973120. Its totient is φ = 1322879040.

The previous prime is 2541291611. The next prime is 2541291653. The reversal of 2541291645 is 5461921452.

It is not a de Polignac number, because 2541291645 - 2²⁴ = 2524514429 is a prime.

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, 262440 + ... + 271950.

It is an arithmetic number, because the mean of its divisors is an integer number (130124160).

Almost surely, 2^2541291645 is an apocalyptic number.

It is an amenable number.

2541291645 is a deficient number, since it is larger than the sum of its proper divisors (1622681475).

2541291645 is a wasteful number, since it uses less digits than its factorization.

2541291645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9945.

The product of its digits is 86400, while the sum is 39.

The square root of 2541291645 is about 50411.2253868124. The cubic root of 2541291645 is about 1364.6402277424.

The spelling of 2541291645 in words is "two billion, five hundred forty-one million, two hundred ninety-one thousand, six hundred forty-five".