2089691572 has 12 divisors (see below), whose sum is σ = 3657310020. Its totient is φ = 1044745856.

The previous prime is 2089691563. The next prime is 2089691621. The reversal of 2089691572 is 2751969802.

It can be written as a sum of positive squares in 2 ways, for example, as 2019064356 + 70627216 = 44934^2 + 8404^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42054 + ... + 77122.

It is an arithmetic number, because the mean of its divisors is an integer number (304775835).

Almost surely, 2^2089691572 is an apocalyptic number.

It is an amenable number.

2089691572 is a deficient number, since it is larger than the sum of its proper divisors (1567618448).

2089691572 is a wasteful number, since it uses less digits than its factorization.

2089691572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49970 (or 49968 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 2089691572 is about 45713.1444116460. The cubic root of 2089691572 is about 1278.4803686271.

The spelling of 2089691572 in words is "two billion, eighty-nine million, six hundred ninety-one thousand, five hundred seventy-two".