674456734770565 has 16 divisors (see below), whose sum is σ = 817464888923760. Its totient is φ = 534162565992960.

The previous prime is 674456734770551. The next prime is 674456734770589. The reversal of 674456734770565 is 565077437654476.

It can be written as a sum of positive squares in 8 ways, for example, as 126571005142884 + 547885729627681 = 11250378^2 + 23406959^2 .

It is not a de Polignac number, because 674456734770565 - 2³⁷ = 674319295817093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 674456734770491 and 674456734770500.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 523291704 + ... + 524578993.

It is an arithmetic number, because the mean of its divisors is an integer number (51091555557735).

Almost surely, 2^{674456734770565} is an apocalyptic number.

It is an amenable number.

674456734770565 is a deficient number, since it is larger than the sum of its proper divisors (143008154153195).

674456734770565 is a wasteful number, since it uses less digits than its factorization.

674456734770565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047871992.

The product of its (nonzero) digits is 12446784000, while the sum is 76.

The spelling of 674456734770565 in words is "six hundred seventy-four trillion, four hundred fifty-six billion, seven hundred thirty-four million, seven hundred seventy thousand, five hundred sixty-five".