19396425427031 has 4 divisors (see below), whose sum is σ = 19467998952864. Its totient is φ = 19324851901200.

The previous prime is 19396425427003. The next prime is 19396425427033. The reversal of 19396425427031 is 13072452469391.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19396425427031 is a prime.

It is a super-2 number, since 2×19396425427031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19396425427033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35786762510 + ... + 35786763051.

It is an arithmetic number, because the mean of its divisors is an integer number (4866999738216).

Almost surely, 2^{19396425427031} is an apocalyptic number.

19396425427031 is a deficient number, since it is larger than the sum of its proper divisors (71573525833).

19396425427031 is an equidigital number, since it uses as much as digits as its factorization.

19396425427031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71573525832.

The product of its (nonzero) digits is 9797760, while the sum is 56.

The spelling of 19396425427031 in words is "nineteen trillion, three hundred ninety-six billion, four hundred twenty-five million, four hundred twenty-seven thousand, thirty-one".