2780607551 has 12 divisors (see below), whose sum is σ = 2883706800. Its totient is φ = 2681081088.

The previous prime is 2780607547. The next prime is 2780607559. The reversal of 2780607551 is 1557060872.

It is not a de Polignac number, because 2780607551 - 2² = 2780607547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2780607499 and 2780607508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2780607559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 779510 + ... + 783068.

It is an arithmetic number, because the mean of its divisors is an integer number (240308900).

Almost surely, 2^2780607551 is an apocalyptic number.

2780607551 is a deficient number, since it is larger than the sum of its proper divisors (103099249).

2780607551 is an equidigital number, since it uses as much as digits as its factorization.

2780607551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4546 (or 4517 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 41.

The square root of 2780607551 is about 52731.4664218624. The cubic root of 2780607551 is about 1406.1982914689.

The spelling of 2780607551 in words is "two billion, seven hundred eighty million, six hundred seven thousand, five hundred fifty-one".