4187945541 has 32 divisors (see below), whose sum is σ = 6111770112. Its totient is φ = 2535252480.

The previous prime is 4187945539. The next prime is 4187945543. The reversal of 4187945541 is 1455497814.

It is an interprime number because it is at equal distance from previous prime (4187945539) and next prime (4187945543).

It is not a de Polignac number, because 4187945541 - 2¹ = 4187945539 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4187945543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1225351 + ... + 1228763.

It is an arithmetic number, because the mean of its divisors is an integer number (190992816).

Almost surely, 2^4187945541 is an apocalyptic number.

It is an amenable number.

4187945541 is a deficient number, since it is larger than the sum of its proper divisors (1923824571).

4187945541 is a wasteful number, since it uses less digits than its factorization.

4187945541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3933.

The product of its digits is 806400, while the sum is 48.

The square root of 4187945541 is about 64714.3379862608. The cubic root of 4187945541 is about 1611.8835947455.

The spelling of 4187945541 in words is "four billion, one hundred eighty-seven million, nine hundred forty-five thousand, five hundred forty-one".