427346731008 has 140 divisors (see below), whose sum is σ = 1276688362290. Its totient is φ = 142448689152.

The previous prime is 427346730977. The next prime is 427346731043. The reversal of 427346731008 is 800137643724.

427346731008 is a `hidden beast` number, since 4 + 273 + 4 + 67 + 310 + 0 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 258682097664 + 168664633344 = 508608^2 + 410688^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 341538 + ... + 985566.

Almost surely, 2^427346731008 is an apocalyptic number.

427346731008 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 427346731008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (638344181145).

427346731008 is an abundant number, since it is smaller than the sum of its proper divisors (849341631282).

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

427346731008 is an frugal number, since it uses more digits than its factorization.

427346731008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644067 (or 644034 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The spelling of 427346731008 in words is "four hundred twenty-seven billion, three hundred forty-six million, seven hundred thirty-one thousand, eight".