854617008477 has 4 divisors (see below), whose sum is σ = 1139489344640. Its totient is φ = 569744672316.

The previous prime is 854617008463. The next prime is 854617008517. The reversal of 854617008477 is 774800716458.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 854617008477 - 2¹⁴ = 854616992093 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 (854617008437) 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, 142436168077 + ... + 142436168082.

It is an arithmetic number, because the mean of its divisors is an integer number (284872336160).

Almost surely, 2^854617008477 is an apocalyptic number.

It is an amenable number.

854617008477 is a deficient number, since it is larger than the sum of its proper divisors (284872336163).

854617008477 is a wasteful number, since it uses less digits than its factorization.

854617008477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284872336162.

The product of its (nonzero) digits is 10536960, while the sum is 57.

The spelling of 854617008477 in words is "eight hundred fifty-four billion, six hundred seventeen million, eight thousand, four hundred seventy-seven".