19735427077794 has 20 divisors (see below), whose sum is σ = 44221975489494. Its totient is φ = 6578475692544.

The previous prime is 19735427077739. The next prime is 19735427077913. The reversal of 19735427077794 is 49777072453791.

It is a happy number.

19735427077794 is a `hidden beast` number, since 1 + 9 + 7 + 3 + 542 + 7 + 0 + 7 + 7 + 79 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19733718330225 + 1708747569 = 4442265^2 + 41337^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 60911811807 + ... + 60911812130.

Almost surely, 2^{19735427077794} is an apocalyptic number.

19735427077794 is an abundant number, since it is smaller than the sum of its proper divisors (24486548411700).

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

19735427077794 is a wasteful number, since it uses less digits than its factorization.

19735427077794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121823623951 (or 121823623942 counting only the distinct ones).

The product of its (nonzero) digits is 653456160, while the sum is 72.

The spelling of 19735427077794 in words is "nineteen trillion, seven hundred thirty-five billion, four hundred twenty-seven million, seventy-seven thousand, seven hundred ninety-four".