1912688910 has 256 divisors, whose sum is σ = 5878656000. Its totient is φ = 438197760.

The previous prime is 1912688873. The next prime is 1912688917. The reversal of 1912688910 is 198862191.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1912688917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4564681 + ... + 4565099.

It is an arithmetic number, because the mean of its divisors is an integer number (22963500).

Almost surely, 2^1912688910 is an apocalyptic number.

1912688910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1912688910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2939328000).

1912688910 is an abundant number, since it is smaller than the sum of its proper divisors (3965967090).

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

1912688910 is a wasteful number, since it uses less digits than its factorization.

1912688910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528 (or 522 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 45.

The square root of 1912688910 is about 43734.2990111880. The cubic root of 1912688910 is about 1241.3134084675.

The spelling of 1912688910 in words is "one billion, nine hundred twelve million, six hundred eighty-eight thousand, nine hundred ten".