2871252856 has 8 divisors (see below), whose sum is σ = 5383599120. Its totient is φ = 1435626424.

The previous prime is 2871252847. The next prime is 2871252869. The reversal of 2871252856 is 6582521782.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

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, 179453296 + ... + 179453311.

It is an arithmetic number, because the mean of its divisors is an integer number (672949890).

Almost surely, 2^2871252856 is an apocalyptic number.

It is an amenable number.

2871252856 is a deficient number, since it is larger than the sum of its proper divisors (2512346264).

2871252856 is a wasteful number, since it uses less digits than its factorization.

2871252856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358906613 (or 358906609 counting only the distinct ones).

The product of its digits is 537600, while the sum is 46.

The square root of 2871252856 is about 53584.0727828708. The cubic root of 2871252856 is about 1421.3154602374.

The spelling of 2871252856 in words is "two billion, eight hundred seventy-one million, two hundred fifty-two thousand, eight hundred fifty-six".