19701364787712 has 60 divisors (see below), whose sum is σ = 56859472737210. Its totient is φ = 6567121594368.

The previous prime is 19701364787711. The next prime is 19701364787737. The reversal of 19701364787712 is 21778746310791.

It is a happy number.

19701364787712 is a `hidden beast` number, since 1 + 9 + 70 + 13 + 6 + 478 + 77 + 12 = 666.

19701364787712 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 15907845079296 + 3793519708416 = 3988464^2 + 1947696^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 19701364787712.

It is not an unprimeable number, because it can be changed into a prime (19701364787711) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2137730287 + ... + 2137739502.

Almost surely, 2^{19701364787712} is an apocalyptic number.

19701364787712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19701364787712 is an abundant number, since it is smaller than the sum of its proper divisors (37158107949498).

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

19701364787712 is an equidigital number, since it uses as much as digits as its factorization.

19701364787712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4275469813 (or 4275469794 counting only the distinct ones).

The product of its (nonzero) digits is 24893568, while the sum is 63.

The spelling of 19701364787712 in words is "nineteen trillion, seven hundred one billion, three hundred sixty-four million, seven hundred eighty-seven thousand, seven hundred twelve".