1912261988352 has 208 divisors, whose sum is σ = 5540250859520. Its totient is φ = 584390246400.

The previous prime is 1912261988323. The next prime is 1912261988353. The reversal of 1912261988352 is 2538891622191.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 1912261988292 and 1912261988301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1912261988353) 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, 7105527 + ... + 7369737.

It is an arithmetic number, because the mean of its divisors is an integer number (26635821440).

Almost surely, 2^{1912261988352} is an apocalyptic number.

1912261988352 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 1912261988352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2770125429760).

1912261988352 is an abundant number, since it is smaller than the sum of its proper divisors (3627988871168).

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

1912261988352 is a wasteful number, since it uses less digits than its factorization.

1912261988352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264288 (or 264266 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 57.

The spelling of 1912261988352 in words is "one trillion, nine hundred twelve billion, two hundred sixty-one million, nine hundred eighty-eight thousand, three hundred fifty-two".