1949872753 has 4 divisors (see below), whose sum is σ = 1950968128. Its totient is φ = 1948777380.

The previous prime is 1949872723. The next prime is 1949872759. The reversal of 1949872753 is 3572789491.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1949872753 - 2⁵ = 1949872721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1949872694 and 1949872703.

It is not an unprimeable number, because it can be changed into a prime (1949872759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545013 + ... + 548578.

It is an arithmetic number, because the mean of its divisors is an integer number (487742032).

Almost surely, 2^1949872753 is an apocalyptic number.

It is an amenable number.

1949872753 is a deficient number, since it is larger than the sum of its proper divisors (1095375).

1949872753 is a wasteful number, since it uses less digits than its factorization.

1949872753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095374.

The product of its digits is 3810240, while the sum is 55.

The square root of 1949872753 is about 44157.3635195762. The cubic root of 1949872753 is about 1249.3058018492.

The spelling of 1949872753 in words is "one billion, nine hundred forty-nine million, eight hundred seventy-two thousand, seven hundred fifty-three".