6487402880 has 64 divisors (see below), whose sum is σ = 17724523680. Its totient is φ = 2224250880.

The previous prime is 6487402847. The next prime is 6487402913. The reversal of 6487402880 is 882047846.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6487402847) and next prime (6487402913).

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×6487402880² = 84172792254864588800, which contains 22 as substring.

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, 719561 + ... + 728520.

Almost surely, 2^6487402880 is an apocalyptic number.

It is an amenable number.

6487402880 is an abundant number, since it is smaller than the sum of its proper divisors (11237120800).

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

6487402880 is a wasteful number, since it uses less digits than its factorization.

6487402880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448107 (or 1448095 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 47.

The square root of 6487402880 is about 80544.4155730241. The cubic root of 6487402880 is about 1865.0491861475.

The spelling of 6487402880 in words is "six billion, four hundred eighty-seven million, four hundred two thousand, eight hundred eighty".