2689171450 has 96 divisors (see below), whose sum is σ = 6035328000. Its totient is φ = 890043840.

The previous prime is 2689171447. The next prime is 2689171489. The reversal of 2689171450 is 541719862.

It is a junction number, because it is equal to n+sod(n) for n = 2689171397 and 2689171406.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 494647 + ... + 500053.

It is an arithmetic number, because the mean of its divisors is an integer number (62868000).

Almost surely, 2^2689171450 is an apocalyptic number.

2689171450 is an abundant number, since it is smaller than the sum of its proper divisors (3346156550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2689171450 is a wasteful number, since it uses less digits than its factorization.

2689171450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5469 (or 5450 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 2689171450 is about 51857.2217728640. The cubic root of 2689171450 is about 1390.6126123207.

The spelling of 2689171450 in words is "two billion, six hundred eighty-nine million, one hundred seventy-one thousand, four hundred fifty".