2807880861 has 8 divisors (see below), whose sum is σ = 3744254304. Its totient is φ = 1871714000.

The previous prime is 2807880853. The next prime is 2807880863. The reversal of 2807880861 is 1680887082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2807880861 - 2³ = 2807880853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2807880861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2807880863) 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 7 ways as a sum of consecutive naturals, for example, 16515 + ... + 76736.

It is an arithmetic number, because the mean of its divisors is an integer number (468031788).

Almost surely, 2^2807880861 is an apocalyptic number.

It is an amenable number.

2807880861 is a deficient number, since it is larger than the sum of its proper divisors (936373443).

2807880861 is a wasteful number, since it uses less digits than its factorization.

2807880861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103291.

The product of its (nonzero) digits is 344064, while the sum is 48.

The square root of 2807880861 is about 52989.4410330964. The cubic root of 2807880861 is about 1410.7808596677.

The spelling of 2807880861 in words is "two billion, eight hundred seven million, eight hundred eighty thousand, eight hundred sixty-one".