1989096051 has 16 divisors (see below), whose sum is σ = 2862869760. Its totient is φ = 1224669600.

The previous prime is 1989096047. The next prime is 1989096077. The reversal of 1989096051 is 1506909891.

It is not a de Polignac number, because 1989096051 - 2² = 1989096047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1989096751) 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, 495025 + ... + 499026.

It is an arithmetic number, because the mean of its divisors is an integer number (178929360).

Almost surely, 2^1989096051 is an apocalyptic number.

1989096051 is a deficient number, since it is larger than the sum of its proper divisors (873773709).

1989096051 is a wasteful number, since it uses less digits than its factorization.

1989096051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994106.

The product of its (nonzero) digits is 174960, while the sum is 48.

The square root of 1989096051 is about 44599.2830771976. The cubic root of 1989096051 is about 1257.6271903305.

The spelling of 1989096051 in words is "one billion, nine hundred eighty-nine million, ninety-six thousand, fifty-one".