2689977450 has 48 divisors (see below), whose sum is σ = 6674349600. Its totient is φ = 716982720.

The previous prime is 2689977431. The next prime is 2689977503. The reversal of 2689977450 is 547799862.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 525001 + ... + 530099.

It is an arithmetic number, because the mean of its divisors is an integer number (139048950).

Almost surely, 2^2689977450 is an apocalyptic number.

2689977450 is an abundant number, since it is smaller than the sum of its proper divisors (3984372150).

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

2689977450 is a wasteful number, since it uses less digits than its factorization.

2689977450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8631 (or 8626 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 57.

The square root of 2689977450 is about 51864.9925286797. The cubic root of 2689977450 is about 1390.7515301778.

The spelling of 2689977450 in words is "two billion, six hundred eighty-nine million, nine hundred seventy-seven thousand, four hundred fifty".