250261345968 has 80 divisors (see below), whose sum is σ = 656533991040. Its totient is φ = 82130913792.

The previous prime is 250261345963. The next prime is 250261345973. The reversal of 250261345968 is 869543162052.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (250261345963) and next prime (250261345973).

It is a self number, because there is not a number n which added to its sum of digits gives 250261345968.

It is not an unprimeable number, because it can be changed into a prime (250261345963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1909323 + ... + 2036181.

It is an arithmetic number, because the mean of its divisors is an integer number (8206674888).

Almost surely, 2^250261345968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 250261345968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328266995520).

250261345968 is an abundant number, since it is smaller than the sum of its proper divisors (406272645072).

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

250261345968 is a wasteful number, since it uses less digits than its factorization.

250261345968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127506 (or 127500 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 51.

The spelling of 250261345968 in words is "two hundred fifty billion, two hundred sixty-one million, three hundred forty-five thousand, nine hundred sixty-eight".