1913797038074 has 16 divisors (see below), whose sum is σ = 2894450322600. Its totient is φ = 949012783104.

The previous prime is 1913797038073. The next prime is 1913797038121. The reversal of 1913797038074 is 4708307973191.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1760491117225 + 153305920849 = 1326835^2 + 391543^2 .

It is not an unprimeable number, because it can be changed into a prime (1913797038073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8011859 + ... + 8247270.

Almost surely, 2^{1913797038074} is an apocalyptic number.

1913797038074 is a deficient number, since it is larger than the sum of its proper divisors (980653284526).

1913797038074 is a wasteful number, since it uses less digits than its factorization.

1913797038074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16259617.

The product of its (nonzero) digits is 8001504, while the sum is 59.

The spelling of 1913797038074 in words is "one trillion, nine hundred thirteen billion, seven hundred ninety-seven million, thirty-eight thousand, seventy-four".