245575747280 has 20 divisors (see below), whose sum is σ = 570963612612. Its totient is φ = 98230298880.

The previous prime is 245575747273. The next prime is 245575747321. The reversal of 245575747280 is 82747575542.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 160211269696 + 85364477584 = 400264^2 + 292172^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1534848341 + ... + 1534848500.

Almost surely, 2^245575747280 is an apocalyptic number.

245575747280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245575747280 is an abundant number, since it is smaller than the sum of its proper divisors (325387865332).

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

245575747280 is a wasteful number, since it uses less digits than its factorization.

245575747280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3069696854 (or 3069696848 counting only the distinct ones).

The product of its (nonzero) digits is 21952000, while the sum is 56.

The spelling of 245575747280 in words is "two hundred forty-five billion, five hundred seventy-five million, seven hundred forty-seven thousand, two hundred eighty".