674334433477 has 4 divisors (see below), whose sum is σ = 714001164876. Its totient is φ = 634667702080.

The previous prime is 674334433457. The next prime is 674334433481. The reversal of 674334433477 is 774334433476.

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

It can be written as a sum of positive squares in 2 ways, for example, as 234905978241 + 439428455236 = 484671^2 + 662894^2 .

It is not a de Polignac number, because 674334433477 - 2³¹ = 672186949829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674334433417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19833365674 + ... + 19833365707.

It is an arithmetic number, because the mean of its divisors is an integer number (178500291219).

Almost surely, 2^674334433477 is an apocalyptic number.

It is an amenable number.

674334433477 is a deficient number, since it is larger than the sum of its proper divisors (39666731399).

674334433477 is a wasteful number, since it uses less digits than its factorization.

674334433477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39666731398.

The product of its digits is 42674688, while the sum is 55.

Subtracting 674334433477 from its reverse (774334433476), we obtain a palindrome (99999999999).

The spelling of 674334433477 in words is "six hundred seventy-four billion, three hundred thirty-four million, four hundred thirty-three thousand, four hundred seventy-seven".