461428531178 has 4 divisors (see below), whose sum is σ = 692142796770. Its totient is φ = 230714265588.

The previous prime is 461428531133. The next prime is 461428531229. The reversal of 461428531178 is 871135824164.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 364933185409 + 96495345769 = 604097^2 + 310637^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115357132793 + ... + 115357132796.

Almost surely, 2^461428531178 is an apocalyptic number.

461428531178 is a deficient number, since it is larger than the sum of its proper divisors (230714265592).

461428531178 is a wasteful number, since it uses less digits than its factorization.

461428531178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230714265591.

The product of its digits is 1290240, while the sum is 50.

The spelling of 461428531178 in words is "four hundred sixty-one billion, four hundred twenty-eight million, five hundred thirty-one thousand, one hundred seventy-eight".