864071476477 has 4 divisors (see below), whose sum is σ = 942623428896. Its totient is φ = 785519524060.

The previous prime is 864071476469. The next prime is 864071476481. The reversal of 864071476477 is 774674170468.

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 a cyclic number.

It is not a de Polignac number, because 864071476477 - 2³ = 864071476469 is a prime.

It is a super-2 number, since 2×864071476477² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864071476427) 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, 39275976193 + ... + 39275976214.

It is an arithmetic number, because the mean of its divisors is an integer number (235655857224).

Almost surely, 2^864071476477 is an apocalyptic number.

It is an amenable number.

864071476477 is a deficient number, since it is larger than the sum of its proper divisors (78551952419).

864071476477 is a wasteful number, since it uses less digits than its factorization.

864071476477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78551952418.

The product of its (nonzero) digits is 44255232, while the sum is 61.

The spelling of 864071476477 in words is "eight hundred sixty-four billion, seventy-one million, four hundred seventy-six thousand, four hundred seventy-seven".