674867070545 has 4 divisors (see below), whose sum is σ = 809840484660. Its totient is φ = 539893656432.

The previous prime is 674867070533. The next prime is 674867070551. The reversal of 674867070545 is 545070768476.

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 2 ways, for example, as 68312708689 + 606554361856 = 261367^2 + 778816^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-674867070545 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67486707050 + ... + 67486707059.

It is an arithmetic number, because the mean of its divisors is an integer number (202460121165).

Almost surely, 2^674867070545 is an apocalyptic number.

It is an amenable number.

674867070545 is a deficient number, since it is larger than the sum of its proper divisors (134973414115).

674867070545 is a wasteful number, since it uses less digits than its factorization.

674867070545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134973414114.

The product of its (nonzero) digits is 39513600, while the sum is 59.

The spelling of 674867070545 in words is "six hundred seventy-four billion, eight hundred sixty-seven million, seventy thousand, five hundred forty-five".