1881952616 has 8 divisors (see below), whose sum is σ = 3528661170. Its totient is φ = 940976304.

The previous prime is 1881952613. The next prime is 1881952627. The reversal of 1881952616 is 6162591881.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1803700900 + 78251716 = 42470^2 + 8846^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1881952613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117622031 + ... + 117622046.

Almost surely, 2^1881952616 is an apocalyptic number.

It is an amenable number.

1881952616 is a deficient number, since it is larger than the sum of its proper divisors (1646708554).

1881952616 is a wasteful number, since it uses less digits than its factorization.

1881952616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235244083 (or 235244079 counting only the distinct ones).

The product of its digits is 207360, while the sum is 47.

The square root of 1881952616 is about 43381.4777987104. The cubic root of 1881952616 is about 1234.6283016538.

The spelling of 1881952616 in words is "one billion, eight hundred eighty-one million, nine hundred fifty-two thousand, six hundred sixteen".