1878213552 has 80 divisors (see below), whose sum is σ = 5004322560. Its totient is φ = 606726400.

The previous prime is 1878213539. The next prime is 1878213559. The reversal of 1878213552 is 2553128781.

It is a super-2 number, since 2×1878213552² = 7055372293832913408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1878213559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196402 + ... + 205742.

It is an arithmetic number, because the mean of its divisors is an integer number (62554032).

Almost surely, 2^1878213552 is an apocalyptic number.

1878213552 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 1878213552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2502161280).

1878213552 is an abundant number, since it is smaller than the sum of its proper divisors (3126109008).

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

1878213552 is a wasteful number, since it uses less digits than its factorization.

1878213552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9482 (or 9476 counting only the distinct ones).

The product of its digits is 134400, while the sum is 42.

The square root of 1878213552 is about 43338.3612057493. The cubic root of 1878213552 is about 1233.8101062622.

The spelling of 1878213552 in words is "one billion, eight hundred seventy-eight million, two hundred thirteen thousand, five hundred fifty-two".