2109632858 has 4 divisors (see below), whose sum is σ = 3164449290. Its totient is φ = 1054816428.

The previous prime is 2109632857. The next prime is 2109632891. The reversal of 2109632858 is 8582369012.

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

It can be written as a sum of positive squares in only one way, i.e., 1482481009 + 627151849 = 38503^2 + 25043^2 .

It is not an unprimeable number, because it can be changed into a prime (2109632857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527408213 + ... + 527408216.

Almost surely, 2^2109632858 is an apocalyptic number.

2109632858 is a deficient number, since it is larger than the sum of its proper divisors (1054816432).

2109632858 is a wasteful number, since it uses less digits than its factorization.

2109632858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054816431.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 2109632858 is about 45930.7397937373. The cubic root of 2109632858 is about 1282.5342163645.

The spelling of 2109632858 in words is "two billion, one hundred nine million, six hundred thirty-two thousand, eight hundred fifty-eight".