1911912370368 has 448 divisors, whose sum is σ = 6885059607552. Its totient is φ = 452117790720.

The previous prime is 1911912370363. The next prime is 1911912370373. The reversal of 1911912370368 is 8630732191191.

It is an interprime number because it is at equal distance from previous prime (1911912370363) and next prime (1911912370373).

It is a tau number, because it is divible by the number of its divisors (448).

It is a self number, because there is not a number n which added to its sum of digits gives 1911912370368.

It is not an unprimeable number, because it can be changed into a prime (1911912370363) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13961880 + ... + 14098152.

It is an arithmetic number, because the mean of its divisors is an integer number (15368436624).

Almost surely, 2^{1911912370368} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1911912370368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3442529803776).

1911912370368 is an abundant number, since it is smaller than the sum of its proper divisors (4973147237184).

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

1911912370368 is a wasteful number, since it uses less digits than its factorization.

1911912370368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136392 (or 136382 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 51.

The spelling of 1911912370368 in words is "one trillion, nine hundred eleven billion, nine hundred twelve million, three hundred seventy thousand, three hundred sixty-eight".