1906743408640 has 96 divisors (see below), whose sum is σ = 5228648137440. Its totient is φ = 653740572672.

The previous prime is 1906743408587. The next prime is 1906743408701. The reversal of 1906743408640 is 468043476091.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13228707 + ... + 13372066.

It is an arithmetic number, because the mean of its divisors is an integer number (54465084765).

Almost surely, 2^{1906743408640} is an apocalyptic number.

1906743408640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1906743408640 is an abundant number, since it is smaller than the sum of its proper divisors (3321904728800).

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

1906743408640 is an equidigital number, since it uses as much as digits as its factorization.

1906743408640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26600807 (or 26600787 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 52.

The spelling of 1906743408640 in words is "one trillion, nine hundred six billion, seven hundred forty-three million, four hundred eight thousand, six hundred forty".