1881615796 has 12 divisors (see below), whose sum is σ = 3293870020. Its totient is φ = 940510080.

The previous prime is 1881615793. The next prime is 1881615817. The reversal of 1881615796 is 6975161881.

It can be written as a sum of positive squares in 2 ways, for example, as 214036900 + 1667578896 = 14630^2 + 40836^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1881615793) 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, 59925 + ... + 85756.

Almost surely, 2^1881615796 is an apocalyptic number.

It is an amenable number.

1881615796 is a deficient number, since it is larger than the sum of its proper divisors (1412254224).

1881615796 is a wasteful number, since it uses less digits than its factorization.

1881615796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148914 (or 148912 counting only the distinct ones).

The product of its digits is 725760, while the sum is 52.

The square root of 1881615796 is about 43377.5955534652. The cubic root of 1881615796 is about 1234.5546419325.

The spelling of 1881615796 in words is "one billion, eight hundred eighty-one million, six hundred fifteen thousand, seven hundred ninety-six".