2090923019640 has 1344 divisors, whose sum is σ = 8914446792000. Its totient is φ = 440805141504.

The previous prime is 2090923019623. The next prime is 2090923019651. The reversal of 2090923019640 is 469103290902.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 335 ways as a sum of consecutive naturals, for example, 1690317102 + ... + 1690318338.

Almost surely, 2^{2090923019640} is an apocalyptic number.

2090923019640 is a gapful number since it is divisible by the number (20) 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 2090923019640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4457223396000).

2090923019640 is an abundant number, since it is smaller than the sum of its proper divisors (6823523772360).

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

2090923019640 is a wasteful number, since it uses less digits than its factorization.

2090923019640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313 (or 1267 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The spelling of 2090923019640 in words is "two trillion, ninety billion, nine hundred twenty-three million, nineteen thousand, six hundred forty".