1863968488 has 16 divisors (see below), whose sum is σ = 3569302080. Its totient is φ = 912154608.

The previous prime is 1863968479. The next prime is 1863968489. The reversal of 1863968488 is 8848693681.

It is a super-2 number, since 2×1863968488² = 6948757048514012288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1863968489) 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, 2478306 + ... + 2479057.

It is an arithmetic number, because the mean of its divisors is an integer number (223081380).

Almost surely, 2^1863968488 is an apocalyptic number.

It is an amenable number.

1863968488 is a deficient number, since it is larger than the sum of its proper divisors (1705333592).

1863968488 is a wasteful number, since it uses less digits than its factorization.

1863968488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4957416 (or 4957412 counting only the distinct ones).

The product of its digits is 15925248, while the sum is 61.

The square root of 1863968488 is about 43173.7013470006. The cubic root of 1863968488 is about 1230.6829635184.

The spelling of 1863968488 in words is "one billion, eight hundred sixty-three million, nine hundred sixty-eight thousand, four hundred eighty-eight".