2780561301 has 12 divisors (see below), whose sum is σ = 4312707552. Its totient is φ = 1588892088.

The previous prime is 2780561291. The next prime is 2780561317. The reversal of 2780561301 is 1031650872.

It is not a de Polignac number, because 2780561301 - 2⁶ = 2780561237 is a prime.

It is a super-2 number, since 2×2780561301² = 15463042297237625202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2780561351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9457545 + ... + 9457838.

It is an arithmetic number, because the mean of its divisors is an integer number (359392296).

Almost surely, 2^2780561301 is an apocalyptic number.

2780561301 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2780561301 is a deficient number, since it is larger than the sum of its proper divisors (1532146251).

2780561301 is a wasteful number, since it uses less digits than its factorization.

2780561301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18915400 (or 18915393 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 2780561301 is about 52731.0278773323. The cubic root of 2780561301 is about 1406.1904949675.

The spelling of 2780561301 in words is "two billion, seven hundred eighty million, five hundred sixty-one thousand, three hundred one".