2871401680 has 40 divisors (see below), whose sum is σ = 7629725952. Its totient is φ = 984480384.

The previous prime is 2871401653. The next prime is 2871401713. The reversal of 2871401680 is 861041782.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (37) 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 in 7 ways as a sum of consecutive naturals, for example, 2563192 + ... + 2564311.

Almost surely, 2^2871401680 is an apocalyptic number.

2871401680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2871401680 is an abundant number, since it is smaller than the sum of its proper divisors (4758324272).

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

2871401680 is a wasteful number, since it uses less digits than its factorization.

2871401680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5127523 (or 5127517 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 2871401680 is about 53585.4614611090. The cubic root of 2871401680 is about 1421.3400165557.

The spelling of 2871401680 in words is "two billion, eight hundred seventy-one million, four hundred one thousand, six hundred eighty".