5449261905 has 16 divisors (see below), whose sum is σ = 9687576960. Its totient is φ = 2906272944.

The previous prime is 5449261891. The next prime is 5449261963. The reversal of 5449261905 is 5091629445.

5449261905 is a `hidden beast` number, since 544 + 92 + 6 + 19 + 0 + 5 = 666.

It is not a de Polignac number, because 5449261905 - 2⁶ = 5449261841 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20182317 + ... + 20182586.

It is an arithmetic number, because the mean of its divisors is an integer number (605473560).

Almost surely, 2^5449261905 is an apocalyptic number.

It is an amenable number.

5449261905 is a deficient number, since it is larger than the sum of its proper divisors (4238315055).

5449261905 is a wasteful number, since it uses less digits than its factorization.

5449261905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40364917 (or 40364911 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 5449261905 is about 73819.1161217743. The cubic root of 5449261905 is about 1759.7294161546.

The spelling of 5449261905 in words is "five billion, four hundred forty-nine million, two hundred sixty-one thousand, nine hundred five".