1878868992 has 528 divisors, whose sum is σ = 6904645632. Its totient is φ = 440893440.

The previous prime is 1878868973. The next prime is 1878869021. The reversal of 1878868992 is 2998688781.

It is a tau number, because it is divible by the number of its divisors (528).

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39975913 + ... + 39975959.

Almost surely, 2^1878868992 is an apocalyptic number.

1878868992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1878868992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3452322816).

1878868992 is an abundant number, since it is smaller than the sum of its proper divisors (5025776640).

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

1878868992 is a wasteful number, since it uses less digits than its factorization.

1878868992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 83 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 66.

The square root of 1878868992 is about 43345.9224379872. The cubic root of 1878868992 is about 1233.9536104347.

It can be divided in two parts, 18788689 and 92, that added together give a palindrome (18788781).

The spelling of 1878868992 in words is "one billion, eight hundred seventy-eight million, eight hundred sixty-eight thousand, nine hundred ninety-two".