613267478 has 4 divisors (see below), whose sum is σ = 919901220. Its totient is φ = 306633738.

The previous prime is 613267477. The next prime is 613267481. The reversal of 613267478 is 874762316.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613267471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153316868 + ... + 153316871.

It is an arithmetic number, because the mean of its divisors is an integer number (229975305).

Almost surely, 2^613267478 is an apocalyptic number.

613267478 is a deficient number, since it is larger than the sum of its proper divisors (306633742).

613267478 is a wasteful number, since it uses less digits than its factorization.

613267478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306633741.

The product of its digits is 338688, while the sum is 44.

The square root of 613267478 is about 24764.2378844979. The cubic root of 613267478 is about 849.6041884945.

The spelling of 613267478 in words is "six hundred thirteen million, two hundred sixty-seven thousand, four hundred seventy-eight".