2101659674 has 4 divisors (see below), whose sum is σ = 3152489514. Its totient is φ = 1050829836.

The previous prime is 2101659647. The next prime is 2101659719. The reversal of 2101659674 is 4769561012.

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., 2084379025 + 17280649 = 45655^2 + 4157^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525414917 + ... + 525414920.

Almost surely, 2^2101659674 is an apocalyptic number.

2101659674 is a deficient number, since it is larger than the sum of its proper divisors (1050829840).

2101659674 is a wasteful number, since it uses less digits than its factorization.

2101659674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050829839.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 2101659674 is about 45843.8619010223. The cubic root of 2101659674 is about 1280.9164323350.

The spelling of 2101659674 in words is "two billion, one hundred one million, six hundred fifty-nine thousand, six hundred seventy-four".