1952791819 has 16 divisors (see below), whose sum is σ = 2261105280. Its totient is φ = 1666783360.

The previous prime is 1952791811. The next prime is 1952791877. The reversal of 1952791819 is 9181972591.

It is not a de Polignac number, because 1952791819 - 2³ = 1952791811 is a prime.

It is a super-2 number, since 2×1952791819² = 7626791776706657522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1952791811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65892 + ... + 90814.

It is an arithmetic number, because the mean of its divisors is an integer number (141319080).

Almost surely, 2^1952791819 is an apocalyptic number.

1952791819 is a deficient number, since it is larger than the sum of its proper divisors (308313461).

1952791819 is a wasteful number, since it uses less digits than its factorization.

1952791819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25370.

The product of its digits is 408240, while the sum is 52.

The square root of 1952791819 is about 44190.4041506751. The cubic root of 1952791819 is about 1249.9289173445.

The spelling of 1952791819 in words is "one billion, nine hundred fifty-two million, seven hundred ninety-one thousand, eight hundred nineteen".