19890493850300 has 18 divisors (see below), whose sum is σ = 43162371655368. Its totient is φ = 7956197540080.

The previous prime is 19890493850287. The next prime is 19890493850321. The reversal of 19890493850300 is 305839409891.

It is a self number, because there is not a number n which added to its sum of digits gives 19890493850300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 99452469152 + ... + 99452469351.

Almost surely, 2^{19890493850300} is an apocalyptic number.

19890493850300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19890493850300 is an abundant number, since it is smaller than the sum of its proper divisors (23271877805068).

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

19890493850300 is a wasteful number, since it uses less digits than its factorization.

19890493850300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198904938517 (or 198904938510 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 59.

The spelling of 19890493850300 in words is "nineteen trillion, eight hundred ninety billion, four hundred ninety-three million, eight hundred fifty thousand, three hundred".