6477543506 has 32 divisors (see below), whose sum is σ = 11589879168. Its totient is φ = 2657266560.

The previous prime is 6477543493. The next prime is 6477543539. The reversal of 6477543506 is 6053457746.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76040 + ... + 136883.

It is an arithmetic number, because the mean of its divisors is an integer number (362183724).

Almost surely, 2^6477543506 is an apocalyptic number.

6477543506 is a deficient number, since it is larger than the sum of its proper divisors (5112335662).

6477543506 is a wasteful number, since it uses less digits than its factorization.

6477543506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213026.

The product of its (nonzero) digits is 2116800, while the sum is 47.

The square root of 6477543506 is about 80483.1877226542. The cubic root of 6477543506 is about 1864.1038905252.

The spelling of 6477543506 in words is "six billion, four hundred seventy-seven million, five hundred forty-three thousand, five hundred six".