1878471650 has 24 divisors (see below), whose sum is σ = 3811590864. Its totient is φ = 683080400.

The previous prime is 1878471649. The next prime is 1878471713. The reversal of 1878471650 is 561748781.

It is a junction number, because it is equal to n+sod(n) for n = 1878471595 and 1878471604.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1707152 + ... + 1708251.

It is an arithmetic number, because the mean of its divisors is an integer number (158816286).

Almost surely, 2^1878471650 is an apocalyptic number.

1878471650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1878471650 is an abundant number, since it is smaller than the sum of its proper divisors (1933119214).

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

1878471650 is a wasteful number, since it uses less digits than its factorization.

1878471650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3415426 (or 3415421 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 47.

The square root of 1878471650 is about 43341.3388118088. The cubic root of 1878471650 is about 1233.8666190648.

The spelling of 1878471650 in words is "one billion, eight hundred seventy-eight million, four hundred seventy-one thousand, six hundred fifty".