6434561178 has 12 divisors (see below), whose sum is σ = 13941549258. Its totient is φ = 2144853720.

The previous prime is 6434561153. The next prime is 6434561191. The reversal of 6434561178 is 8711654346.

It can be written as a sum of positive squares in only one way, i.e., 5916224889 + 518336289 = 76917^2 + 22767^2 .

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 178737793 + ... + 178737828.

Almost surely, 2^6434561178 is an apocalyptic number.

6434561178 is an abundant number, since it is smaller than the sum of its proper divisors (7506988080).

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

6434561178 is a wasteful number, since it uses less digits than its factorization.

6434561178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357475629 (or 357475626 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 6434561178 is about 80215.7165273739. The cubic root of 6434561178 is about 1859.9715933920.

The spelling of 6434561178 in words is "six billion, four hundred thirty-four million, five hundred sixty-one thousand, one hundred seventy-eight".