19601862606493 has 4 divisors (see below), whose sum is σ = 19601963592640. Its totient is φ = 19601761620348.

The previous prime is 19601862606451. The next prime is 19601862606509. The reversal of 19601862606493 is 39460626810691.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19601862606493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19601862601493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50201355 + ... + 50590312.

It is an arithmetic number, because the mean of its divisors is an integer number (4900490898160).

Almost surely, 2^{19601862606493} is an apocalyptic number.

It is an amenable number.

19601862606493 is a deficient number, since it is larger than the sum of its proper divisors (100986147).

19601862606493 is a wasteful number, since it uses less digits than its factorization.

19601862606493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100986146.

The product of its (nonzero) digits is 20155392, while the sum is 61.

The spelling of 19601862606493 in words is "nineteen trillion, six hundred one billion, eight hundred sixty-two million, six hundred six thousand, four hundred ninety-three".