2644436034020 has 192 divisors, whose sum is σ = 6353644437504. Its totient is φ = 915146580480.

The previous prime is 2644436034001. The next prime is 2644436034029. The reversal of 2644436034020 is 204306344462.

It is not an unprimeable number, because it can be changed into a prime (2644436034029) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1450594829 + ... + 1450596651.

It is an arithmetic number, because the mean of its divisors is an integer number (33091898112).

Almost surely, 2^{2644436034020} is an apocalyptic number.

2644436034020 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 2644436034020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3176822218752).

2644436034020 is an abundant number, since it is smaller than the sum of its proper divisors (3709208403484).

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

2644436034020 is a wasteful number, since it uses less digits than its factorization.

2644436034020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3162 (or 3160 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 38.

The spelling of 2644436034020 in words is "two trillion, six hundred forty-four billion, four hundred thirty-six million, thirty-four thousand, twenty".