427077518280 has 512 divisors, whose sum is σ = 1588654080000. Its totient is φ = 91547366400.

The previous prime is 427077518279. The next prime is 427077518291. The reversal of 427077518280 is 82815770724.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 78983337 + ... + 78988743.

It is an arithmetic number, because the mean of its divisors is an integer number (3102840000).

Almost surely, 2^427077518280 is an apocalyptic number.

427077518280 is a gapful number since it is divisible by the number (40) 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 427077518280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (794327040000).

427077518280 is an abundant number, since it is smaller than the sum of its proper divisors (1161576561720).

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

427077518280 is a wasteful number, since it uses less digits than its factorization.

427077518280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5562 (or 5544 counting only the distinct ones).

The product of its (nonzero) digits is 1756160, while the sum is 51.

The spelling of 427077518280 in words is "four hundred twenty-seven billion, seventy-seven million, five hundred eighteen thousand, two hundred eighty".