2041187649 has 16 divisors (see below), whose sum is σ = 2834094720. Its totient is φ = 1305158400.

The previous prime is 2041187639. The next prime is 2041187663. The reversal of 2041187649 is 9467811402.

It is not a de Polignac number, because 2041187649 - 2⁴ = 2041187633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2041187649.

It is not an unprimeable number, because it can be changed into a prime (2041187639) 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, 64552 + ... + 90825.

It is an arithmetic number, because the mean of its divisors is an integer number (177130920).

Almost surely, 2^2041187649 is an apocalyptic number.

2041187649 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2041187649 is a deficient number, since it is larger than the sum of its proper divisors (792907071).

2041187649 is a wasteful number, since it uses less digits than its factorization.

2041187649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155560.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 2041187649 is about 45179.5047449615. The cubic root of 2041187649 is about 1268.5112132366.

The spelling of 2041187649 in words is "two billion, forty-one million, one hundred eighty-seven thousand, six hundred forty-nine".