1119641887 has 16 divisors (see below), whose sum is σ = 1381266432. Its totient is φ = 883784160.

The previous prime is 1119641857. The next prime is 1119641893. The reversal of 1119641887 is 7881469111.

It is a de Polignac number, because none of the positive numbers 2^k-1119641887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1119641857) 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, 24948 + ... + 53494.

It is an arithmetic number, because the mean of its divisors is an integer number (86329152).

Almost surely, 2^1119641887 is an apocalyptic number.

1119641887 is a deficient number, since it is larger than the sum of its proper divisors (261624545).

1119641887 is a wasteful number, since it uses less digits than its factorization.

1119641887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28998.

The product of its digits is 96768, while the sum is 46.

The square root of 1119641887 is about 33461.0502973233. The cubic root of 1119641887 is about 1038.3881240688.

The spelling of 1119641887 in words is "one billion, one hundred nineteen million, six hundred forty-one thousand, eight hundred eighty-seven".