1878496812 has 24 divisors (see below), whose sum is σ = 4870177200. Its totient is φ = 626165568.

The previous prime is 1878496793. The next prime is 1878496813. The reversal of 1878496812 is 2186948781.

1878496812 is a `hidden beast` number, since 1 + 8 + 78 + 496 + 81 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1878496813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8696637 + ... + 8696852.

It is an arithmetic number, because the mean of its divisors is an integer number (202924050).

Almost surely, 2^1878496812 is an apocalyptic number.

1878496812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1878496812 is an abundant number, since it is smaller than the sum of its proper divisors (2991680388).

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

1878496812 is a wasteful number, since it uses less digits than its factorization.

1878496812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17393502 (or 17393494 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 54.

The square root of 1878496812 is about 43341.6290879796. The cubic root of 1878496812 is about 1233.8721282267.

The spelling of 1878496812 in words is "one billion, eight hundred seventy-eight million, four hundred ninety-six thousand, eight hundred twelve".