2861392988 has 6 divisors (see below), whose sum is σ = 5007437736. Its totient is φ = 1430696492.

The previous prime is 2861392867. The next prime is 2861392997. The reversal of 2861392988 is 8892931682.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357674120 + ... + 357674127.

It is an arithmetic number, because the mean of its divisors is an integer number (834572956).

Almost surely, 2^2861392988 is an apocalyptic number.

It is an amenable number.

2861392988 is a deficient number, since it is larger than the sum of its proper divisors (2146044748).

2861392988 is a wasteful number, since it uses less digits than its factorization.

2861392988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715348251 (or 715348249 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 56.

The square root of 2861392988 is about 53491.9899424204. The cubic root of 2861392988 is about 1419.6866643171.

The spelling of 2861392988 in words is "two billion, eight hundred sixty-one million, three hundred ninety-two thousand, nine hundred eighty-eight".