2149478750 has 20 divisors (see below), whose sum is σ = 4028985312. Its totient is φ = 859791000.

The previous prime is 2149478743. The next prime is 2149478789. The reversal of 2149478750 is 578749412.

It is a junction number, because it is equal to n+sod(n) for n = 2149478695 and 2149478704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 858542 + ... + 861041.

Almost surely, 2^2149478750 is an apocalyptic number.

2149478750 is a deficient number, since it is larger than the sum of its proper divisors (1879506562).

2149478750 is an equidigital number, since it uses as much as digits as its factorization.

2149478750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719605 (or 1719590 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 47.

The square root of 2149478750 is about 46362.4713534557. The cubic root of 2149478750 is about 1290.5585686737.

The spelling of 2149478750 in words is "two billion, one hundred forty-nine million, four hundred seventy-eight thousand, seven hundred fifty".