2089691570 has 24 divisors (see below), whose sum is σ = 3895638084. Its totient is φ = 807050048.

The previous prime is 2089691563. The next prime is 2089691621. The reversal of 2089691570 is 751969802.

It can be written as a sum of positive squares in 6 ways, for example, as 1398685201 + 691006369 = 37399^2 + 26287^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115829 + ... + 132648.

Almost surely, 2^2089691570 is an apocalyptic number.

2089691570 is a deficient number, since it is larger than the sum of its proper divisors (1805946514).

2089691570 is a wasteful number, since it uses less digits than its factorization.

2089691570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248542 (or 248513 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 2089691570 is about 45713.1443897704. The cubic root of 2089691570 is about 1278.4803682192.

The spelling of 2089691570 in words is "two billion, eighty-nine million, six hundred ninety-one thousand, five hundred seventy".