2802797780640 has 768 divisors, whose sum is σ = 10507117824000. Its totient is φ = 619105075200.

The previous prime is 2802797780617. The next prime is 2802797780681. The reversal of 2802797780640 is 460877972082.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1830696675 + ... + 1830698205.

It is an arithmetic number, because the mean of its divisors is an integer number (13681143000).

Almost surely, 2^{2802797780640} is an apocalyptic number.

2802797780640 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 2802797780640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5253558912000).

2802797780640 is an abundant number, since it is smaller than the sum of its proper divisors (7704320043360).

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

2802797780640 is a wasteful number, since it uses less digits than its factorization.

2802797780640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901 (or 1893 counting only the distinct ones).

The product of its (nonzero) digits is 18966528, while the sum is 60.

The spelling of 2802797780640 in words is "two trillion, eight hundred two billion, seven hundred ninety-seven million, seven hundred eighty thousand, six hundred forty".