2689991594 has 16 divisors (see below), whose sum is σ = 4061340000. Its totient is φ = 1336226064.

The previous prime is 2689991593. The next prime is 2689991609. The reversal of 2689991594 is 4951999862.

It is a super-4 number, since 4×2689991594⁴ (a number of 39 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (2689991593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465032 + ... + 470780.

It is an arithmetic number, because the mean of its divisors is an integer number (253833750).

Almost surely, 2^2689991594 is an apocalyptic number.

2689991594 is a deficient number, since it is larger than the sum of its proper divisors (1371348406).

2689991594 is a wasteful number, since it uses less digits than its factorization.

2689991594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7237.

The product of its digits is 12597120, while the sum is 62.

The square root of 2689991594 is about 51865.1288825160. The cubic root of 2689991594 is about 1390.7539677144.

The spelling of 2689991594 in words is "two billion, six hundred eighty-nine million, nine hundred ninety-one thousand, five hundred ninety-four".