1961911824 has 40 divisors (see below), whose sum is σ = 5070389760. Its totient is φ = 653697408.

The previous prime is 1961911793. The next prime is 1961911841. The reversal of 1961911824 is 4281191691.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131094 + ... + 145290.

It is an arithmetic number, because the mean of its divisors is an integer number (126759744).

Almost surely, 2^1961911824 is an apocalyptic number.

It is an amenable number.

1961911824 is an abundant number, since it is smaller than the sum of its proper divisors (3108477936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1961911824 is a wasteful number, since it uses less digits than its factorization.

1961911824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17087 (or 17081 counting only the distinct ones).

The product of its digits is 31104, while the sum is 42.

The square root of 1961911824 is about 44293.4738308027. The cubic root of 1961911824 is about 1251.8717183907.

The spelling of 1961911824 in words is "one billion, nine hundred sixty-one million, nine hundred eleven thousand, eight hundred twenty-four".