19490226088597 has 8 divisors (see below), whose sum is σ = 21266252803872. Its totient is φ = 17714897370000.

The previous prime is 19490226088579. The next prime is 19490226088603. The reversal of 19490226088597 is 79588062209491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19490226088597 is a prime.

It is a super-2 number, since 2×19490226088597² (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 (19490226088097) 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, 174440779 + ... + 174552472.

It is an arithmetic number, because the mean of its divisors is an integer number (2658281600484).

Almost surely, 2^{19490226088597} is an apocalyptic number.

It is an amenable number.

19490226088597 is a deficient number, since it is larger than the sum of its proper divisors (1776026715275).

19490226088597 is a wasteful number, since it uses less digits than its factorization.

19490226088597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348998339.

The product of its (nonzero) digits is 156764160, while the sum is 70.

The spelling of 19490226088597 in words is "nineteen trillion, four hundred ninety billion, two hundred twenty-six million, eighty-eight thousand, five hundred ninety-seven".