6381076904 has 8 divisors (see below), whose sum is σ = 11964519210. Its totient is φ = 3190538448.

The previous prime is 6381076903. The next prime is 6381076913. The reversal of 6381076904 is 4096701836.

It can be written as a sum of positive squares in only one way, i.e., 3739322500 + 2641754404 = 61150^2 + 51398^2 .

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

It is not an unprimeable number, because it can be changed into a prime (6381076903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398817299 + ... + 398817314.

Almost surely, 2^6381076904 is an apocalyptic number.

It is an amenable number.

6381076904 is a deficient number, since it is larger than the sum of its proper divisors (5583442306).

6381076904 is a wasteful number, since it uses less digits than its factorization.

6381076904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797634619 (or 797634615 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 6381076904 is about 79881.6430977731. The cubic root of 6381076904 is about 1854.8038680272.

The spelling of 6381076904 in words is "six billion, three hundred eighty-one million, seventy-six thousand, nine hundred four".