612777131474 has 4 divisors (see below), whose sum is σ = 919165697214. Its totient is φ = 306388565736.

The previous prime is 612777131467. The next prime is 612777131497. The reversal of 612777131474 is 474131777216.

It is a happy number.

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., 492095235025 + 120681896449 = 701495^2 + 347393^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153194282867 + ... + 153194282870.

Almost surely, 2^612777131474 is an apocalyptic number.

612777131474 is a deficient number, since it is larger than the sum of its proper divisors (306388565740).

612777131474 is a wasteful number, since it uses less digits than its factorization.

612777131474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306388565739.

The product of its digits is 1382976, while the sum is 50.

The spelling of 612777131474 in words is "six hundred twelve billion, seven hundred seventy-seven million, one hundred thirty-one thousand, four hundred seventy-four".