474869816156749 has 4 divisors (see below), whose sum is σ = 511398263553436. Its totient is φ = 438341368760064.

The previous prime is 474869816156711. The next prime is 474869816156759. The reversal of 474869816156749 is 947651618968474.

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 238315634375625 + 236554181781124 = 15437475^2 + 15380318^2 .

It is a cyclic number.

It is not a de Polignac number, because 474869816156749 - 2³⁹ = 474320060342861 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 (474869816156759) 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, 18264223698324 + ... + 18264223698349.

It is an arithmetic number, because the mean of its divisors is an integer number (127849565888359).

Almost surely, 2^{474869816156749} is an apocalyptic number.

It is an amenable number.

474869816156749 is a deficient number, since it is larger than the sum of its proper divisors (36528447396687).

474869816156749 is a wasteful number, since it uses less digits than its factorization.

474869816156749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36528447396686.

The product of its digits is 17557585920, while the sum is 85.

The spelling of 474869816156749 in words is "four hundred seventy-four trillion, eight hundred sixty-nine billion, eight hundred sixteen million, one hundred fifty-six thousand, seven hundred forty-nine".