1919146834957 has 4 divisors (see below), whose sum is σ = 2093614729056. Its totient is φ = 1744678940860.

The previous prime is 1919146834939. The next prime is 1919146835017. The reversal of 1919146834957 is 7594386419191.

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 1919146834957 - 2¹¹ = 1919146832909 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1919146834892 and 1919146834901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1919146834757) 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, 87233947033 + ... + 87233947054.

It is an arithmetic number, because the mean of its divisors is an integer number (523403682264).

Almost surely, 2^{1919146834957} is an apocalyptic number.

It is an amenable number.

1919146834957 is a deficient number, since it is larger than the sum of its proper divisors (174467894099).

1919146834957 is a wasteful number, since it uses less digits than its factorization.

1919146834957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174467894098.

The product of its digits is 58786560, while the sum is 67.

The spelling of 1919146834957 in words is "one trillion, nine hundred nineteen billion, one hundred forty-six million, eight hundred thirty-four thousand, nine hundred fifty-seven".