19090868626440 has 192 divisors, whose sum is σ = 66821216716800. Its totient is φ = 4699067337216.

The previous prime is 19090868626439. The next prime is 19090868626477. The reversal of 19090868626440 is 4462686809091.

19090868626440 is a `hidden beast` number, since 1 + 9 + 0 + 90 + 8 + 6 + 86 + 26 + 440 = 666.

It is a super-2 number, since 2×19090868626440² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 112267801 + ... + 112437719.

It is an arithmetic number, because the mean of its divisors is an integer number (348027170400).

Almost surely, 2^{19090868626440} is an apocalyptic number.

19090868626440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19090868626440 is an abundant number, since it is smaller than the sum of its proper divisors (47730348090360).

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

19090868626440 is a wasteful number, since it uses less digits than its factorization.

19090868626440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193956 (or 193949 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 63.

The spelling of 19090868626440 in words is "nineteen trillion, ninety billion, eight hundred sixty-eight million, six hundred twenty-six thousand, four hundred forty".