4157841487 has 4 divisors (see below), whose sum is σ = 4402420416. Its totient is φ = 3913262560.

The previous prime is 4157841473. The next prime is 4157841503. The reversal of 4157841487 is 7841487514.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4157841487 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4157841487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4157841407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122289439 + ... + 122289472.

It is an arithmetic number, because the mean of its divisors is an integer number (1100605104).

Almost surely, 2^4157841487 is an apocalyptic number.

4157841487 is a deficient number, since it is larger than the sum of its proper divisors (244578929).

4157841487 is a wasteful number, since it uses less digits than its factorization.

4157841487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244578928.

The product of its digits is 1003520, while the sum is 49.

The square root of 4157841487 is about 64481.3266535359. The cubic root of 4157841487 is about 1608.0120890024.

The spelling of 4157841487 in words is "four billion, one hundred fifty-seven million, eight hundred forty-one thousand, four hundred eighty-seven".