428346037650 has 96 divisors (see below), whose sum is σ = 1067579670528. Its totient is φ = 113658292800.

The previous prime is 428346037621. The next prime is 428346037673. The reversal of 428346037650 is 56730643824.

It is a self number, because there is not a number n which added to its sum of digits gives 428346037650.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 119547759 + ... + 119551341.

It is an arithmetic number, because the mean of its divisors is an integer number (11120621568).

Almost surely, 2^428346037650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 428346037650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (533789835264).

428346037650 is an abundant number, since it is smaller than the sum of its proper divisors (639233632878).

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

428346037650 is a wasteful number, since it uses less digits than its factorization.

428346037650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7336 (or 7331 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 48.

The spelling of 428346037650 in words is "four hundred twenty-eight billion, three hundred forty-six million, thirty-seven thousand, six hundred fifty".