19090825253940 has 192 divisors, whose sum is σ = 61747115609088. Its totient is φ = 4355620300800.

The previous prime is 19090825253939. The next prime is 19090825253999. The reversal of 19090825253940 is 4935252809091.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 355276875 + ... + 355330605.

It is an arithmetic number, because the mean of its divisors is an integer number (321599560464).

Almost surely, 2^{19090825253940} is an apocalyptic number.

19090825253940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19090825253940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30873557804544).

19090825253940 is an abundant number, since it is smaller than the sum of its proper divisors (42656290355148).

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

19090825253940 is a wasteful number, since it uses less digits than its factorization.

19090825253940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85438 (or 85436 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 57.

The spelling of 19090825253940 in words is "nineteen trillion, ninety billion, eight hundred twenty-five million, two hundred fifty-three thousand, nine hundred forty".