427569961650 has 384 divisors, whose sum is σ = 1192135698432. Its totient is φ = 100742400000.

The previous prime is 427569961627. The next prime is 427569961661. The reversal of 427569961650 is 56169965724.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1291751985 + ... + 1291752315.

It is an arithmetic number, because the mean of its divisors is an integer number (3104520048).

Almost surely, 2^427569961650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 427569961650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (596067849216).

427569961650 is an abundant number, since it is smaller than the sum of its proper divisors (764565736782).

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

427569961650 is a wasteful number, since it uses less digits than its factorization.

427569961650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 24494400, while the sum is 60.

The spelling of 427569961650 in words is "four hundred twenty-seven billion, five hundred sixty-nine million, nine hundred sixty-one thousand, six hundred fifty".