74814747554 has 4 divisors (see below), whose sum is σ = 112222121334. Its totient is φ = 37407373776.

The previous prime is 74814747467. The next prime is 74814747613. The reversal of 74814747554 is 45574741847.

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., 69994639225 + 4820108329 = 264565^2 + 69427^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 74814747554.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18703686887 + ... + 18703686890.

Almost surely, 2^74814747554 is an apocalyptic number.

74814747554 is a deficient number, since it is larger than the sum of its proper divisors (37407373780).

74814747554 is a wasteful number, since it uses less digits than its factorization.

74814747554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37407373779.

The product of its digits is 17561600, while the sum is 56.

The spelling of 74814747554 in words is "seventy-four billion, eight hundred fourteen million, seven hundred forty-seven thousand, five hundred fifty-four".