1913772850 has 48 divisors (see below), whose sum is σ = 3911312160. Its totient is φ = 690883200.

The previous prime is 1913772797. The next prime is 1913772869. The reversal of 1913772850 is 582773191.

It is a junction number, because it is equal to n+sod(n) for n = 1913772797 and 1913772806.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63934 + ... + 88966.

It is an arithmetic number, because the mean of its divisors is an integer number (81485670).

Almost surely, 2^1913772850 is an apocalyptic number.

1913772850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1913772850 is an abundant number, since it is smaller than the sum of its proper divisors (1997539310).

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

1913772850 is a wasteful number, since it uses less digits than its factorization.

1913772850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25195 (or 25190 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 1913772850 is about 43746.6895890420. The cubic root of 1913772850 is about 1241.5478524410.

The spelling of 1913772850 in words is "one billion, nine hundred thirteen million, seven hundred seventy-two thousand, eight hundred fifty".