1912678490240 has 512 divisors, whose sum is σ = 5581675008000. Its totient is φ = 612186439680.

The previous prime is 1912678490237. The next prime is 1912678490249. The reversal of 1912678490240 is 420948762191.

It is not an unprimeable number, because it can be changed into a prime (1912678490249) 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, 2358419435 + ... + 2358420245.

It is an arithmetic number, because the mean of its divisors is an integer number (10901709000).

Almost surely, 2^{1912678490240} is an apocalyptic number.

1912678490240 is a gapful number since it is divisible by the number (10) 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 1912678490240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2790837504000).

1912678490240 is an abundant number, since it is smaller than the sum of its proper divisors (3668996517760).

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

1912678490240 is a wasteful number, since it uses less digits than its factorization.

1912678490240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228 (or 1216 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 1912678490240 in words is "one trillion, nine hundred twelve billion, six hundred seventy-eight million, four hundred ninety thousand, two hundred forty".