19497049628490 has 144 divisors (see below), whose sum is σ = 60870841873920. Its totient is φ = 4312711408320.

The previous prime is 19497049628447. The next prime is 19497049628591. The reversal of 19497049628490 is 9482694079491.

19497049628490 is a `hidden beast` number, since 1 + 9 + 4 + 9 + 70 + 4 + 9 + 62 + 8 + 490 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 71171350 + ... + 71444769.

It is an arithmetic number, because the mean of its divisors is an integer number (422714179680).

Almost surely, 2^{19497049628490} is an apocalyptic number.

19497049628490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19497049628490 is an abundant number, since it is smaller than the sum of its proper divisors (41373792245430).

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

19497049628490 is a wasteful number, since it uses less digits than its factorization.

19497049628490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142616177 (or 142616167 counting only the distinct ones).

The product of its (nonzero) digits is 282175488, while the sum is 72.

The spelling of 19497049628490 in words is "nineteen trillion, four hundred ninety-seven billion, forty-nine million, six hundred twenty-eight thousand, four hundred ninety".