2780794841628 has 12 divisors (see below), whose sum is σ = 6488521297160. Its totient is φ = 926931613872.

The previous prime is 2780794841623. The next prime is 2780794841633. The reversal of 2780794841628 is 8261484970872.

It is an interprime number because it is at equal distance from previous prime (2780794841623) and next prime (2780794841633).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2780794841623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115866451723 + ... + 115866451746.

Almost surely, 2^{2780794841628} is an apocalyptic number.

It is an amenable number.

2780794841628 is an abundant number, since it is smaller than the sum of its proper divisors (3707726455532).

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

2780794841628 is a wasteful number, since it uses less digits than its factorization.

2780794841628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231732903476 (or 231732903474 counting only the distinct ones).

The product of its (nonzero) digits is 86704128, while the sum is 66.

The spelling of 2780794841628 in words is "two trillion, seven hundred eighty billion, seven hundred ninety-four million, eight hundred forty-one thousand, six hundred twenty-eight".