2120789486 has 4 divisors (see below), whose sum is σ = 3181184232. Its totient is φ = 1060394742.

The previous prime is 2120789479. The next prime is 2120789509. The reversal of 2120789486 is 6849870212.

It is a happy number.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2120789486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530197370 + ... + 530197373.

It is an arithmetic number, because the mean of its divisors is an integer number (795296058).

Almost surely, 2^2120789486 is an apocalyptic number.

2120789486 is a deficient number, since it is larger than the sum of its proper divisors (1060394746).

2120789486 is a wasteful number, since it uses less digits than its factorization.

2120789486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060394745.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 2120789486 is about 46052.0302049758. The cubic root of 2120789486 is about 1284.7911031275.

The spelling of 2120789486 in words is "two billion, one hundred twenty million, seven hundred eighty-nine thousand, four hundred eighty-six".