1949274855911 has 8 divisors (see below), whose sum is σ = 2052247160880. Its totient is φ = 1846340440128.

The previous prime is 1949274855859. The next prime is 1949274855943. The reversal of 1949274855911 is 1195584729491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1949274855911 - 2¹⁰ = 1949274854887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949274854911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9366656 + ... + 9572501.

It is an arithmetic number, because the mean of its divisors is an integer number (256530895110).

Almost surely, 2^{1949274855911} is an apocalyptic number.

1949274855911 is a deficient number, since it is larger than the sum of its proper divisors (102972304969).

1949274855911 is a wasteful number, since it uses less digits than its factorization.

1949274855911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18944593.

The product of its digits is 32659200, while the sum is 65.

The spelling of 1949274855911 in words is "one trillion, nine hundred forty-nine billion, two hundred seventy-four million, eight hundred fifty-five thousand, nine hundred eleven".