2861953612 has 24 divisors (see below), whose sum is σ = 5802321056. Its totient is φ = 1209748608.

The previous prime is 2861953609. The next prime is 2861953613. The reversal of 2861953612 is 2163591682.

2861953612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2861953613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 698043 + ... + 702130.

Almost surely, 2^2861953612 is an apocalyptic number.

It is an amenable number.

2861953612 is an abundant number, since it is smaller than the sum of its proper divisors (2940367444).

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

2861953612 is a wasteful number, since it uses less digits than its factorization.

2861953612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400257 (or 1400255 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 2861953612 is about 53497.2299469795. The cubic root of 2861953612 is about 1419.7793765550.

The spelling of 2861953612 in words is "two billion, eight hundred sixty-one million, nine hundred fifty-three thousand, six hundred twelve".