2623204451640 has 192 divisors, whose sum is σ = 8142148939680. Its totient is φ = 676082918400.

The previous prime is 2623204451633. The next prime is 2623204451641. The reversal of 2623204451640 is 461544023262.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2623204451641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 91895770 + ... + 91924310.

Almost surely, 2^{2623204451640} is an apocalyptic number.

2623204451640 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 2623204451640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4071074469840).

2623204451640 is an abundant number, since it is smaller than the sum of its proper divisors (5518944488040).

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

2623204451640 is a wasteful number, since it uses less digits than its factorization.

2623204451640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29414 (or 29379 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 39.

The spelling of 2623204451640 in words is "two trillion, six hundred twenty-three billion, two hundred four million, four hundred fifty-one thousand, six hundred forty".