2861879406 has 16 divisors (see below), whose sum is σ = 5809188864. Its totient is φ = 939721464.

The previous prime is 2861879393. The next prime is 2861879453. The reversal of 2861879406 is 6049781682.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3559150 + ... + 3559953.

It is an arithmetic number, because the mean of its divisors is an integer number (363074304).

Almost surely, 2^2861879406 is an apocalyptic number.

2861879406 is an abundant number, since it is smaller than the sum of its proper divisors (2947309458).

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

2861879406 is a wasteful number, since it uses less digits than its factorization.

2861879406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7119175.

The product of its (nonzero) digits is 1161216, while the sum is 51.

The square root of 2861879406 is about 53496.5363925554. The cubic root of 2861879406 is about 1419.7671055596.

The spelling of 2861879406 in words is "two billion, eight hundred sixty-one million, eight hundred seventy-nine thousand, four hundred six".