2780002645596 has 360 divisors, whose sum is σ = 8480646654480. Its totient is φ = 790758650880.

The previous prime is 2780002645583. The next prime is 2780002645603. The reversal of 2780002645596 is 6955462000872.

2780002645596 is a `hidden beast` number, since 2 + 7 + 8 + 0 + 0 + 0 + 2 + 6 + 45 + 596 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 259250691 + ... + 259261413.

It is an arithmetic number, because the mean of its divisors is an integer number (23557351818).

Almost surely, 2^{2780002645596} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2780002645596, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4240323327240).

2780002645596 is an abundant number, since it is smaller than the sum of its proper divisors (5700644008884).

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

2780002645596 is a wasteful number, since it uses less digits than its factorization.

2780002645596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11167 (or 11145 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 2780002645596 in words is "two trillion, seven hundred eighty billion, two million, six hundred forty-five thousand, five hundred ninety-six".