427752664776 has 112 divisors (see below), whose sum is σ = 1202817994560. Its totient is φ = 142547027040.

The previous prime is 427752664763. The next prime is 427752664849. The reversal of 427752664776 is 677466257724.

427752664776 is a `hidden beast` number, since 42 + 7 + 7 + 526 + 64 + 7 + 7 + 6 = 666.

It is a super-2 number, since 2×427752664776² (a number of 24 digits) contains 22 as substring.

It is a zygodrome in base 3.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 30920181 + ... + 30934011.

It is an arithmetic number, because the mean of its divisors is an integer number (10739446380).

Almost surely, 2^427752664776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 427752664776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (601408997280).

427752664776 is an abundant number, since it is smaller than the sum of its proper divisors (775065329784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

427752664776 is a wasteful number, since it uses less digits than its factorization.

427752664776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19158 (or 19139 counting only the distinct ones).

The product of its digits is 165957120, while the sum is 63.

The spelling of 427752664776 in words is "four hundred twenty-seven billion, seven hundred fifty-two million, six hundred sixty-four thousand, seven hundred seventy-six".