427752288390 has 64 divisors (see below), whose sum is σ = 1213720796160. Its totient is φ = 94400503680.

The previous prime is 427752288373. The next prime is 427752288451. The reversal of 427752288390 is 93882257724.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 427752288390.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35113146 + ... + 35125325.

It is an arithmetic number, because the mean of its divisors is an integer number (18964387440).

Almost surely, 2^427752288390 is an apocalyptic number.

427752288390 is an abundant number, since it is smaller than the sum of its proper divisors (785968507770).

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

427752288390 is a wasteful number, since it uses less digits than its factorization.

427752288390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70238517.

The product of its (nonzero) digits is 13547520, while the sum is 57.

The spelling of 427752288390 in words is "four hundred twenty-seven billion, seven hundred fifty-two million, two hundred eighty-eight thousand, three hundred ninety".