6477987960 has 80 divisors (see below), whose sum is σ = 21773248200. Its totient is φ = 1727462592.

The previous prime is 6477987959. The next prime is 6477987977. The reversal of 6477987960 is 697897746.

6477987960 is a `hidden beast` number, since 6 + 477 + 98 + 79 + 6 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 996450 + ... + 1002929.

Almost surely, 2^6477987960 is an apocalyptic number.

6477987960 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6477987960 is an abundant number, since it is smaller than the sum of its proper divisors (15295260240).

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

6477987960 is a wasteful number, since it uses less digits than its factorization.

6477987960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1999402 (or 1999389 counting only the distinct ones).

The product of its (nonzero) digits is 32006016, while the sum is 63.

The square root of 6477987960 is about 80485.9488358061. The cubic root of 6477987960 is about 1864.1465244590.

The spelling of 6477987960 in words is "six billion, four hundred seventy-seven million, nine hundred eighty-seven thousand, nine hundred sixty".