245959800840 has 96 divisors (see below), whose sum is σ = 860859319320. Its totient is φ = 60543949824.

The previous prime is 245959800833. The next prime is 245959800871. The reversal of 245959800840 is 48008959542.

It is a happy number.

245959800840 is a `hidden beast` number, since 2 + 4 + 5 + 9 + 598 + 0 + 0 + 8 + 40 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 82871439876 + 163088360964 = 287874^2 + 403842^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26273077 + ... + 26282436.

Almost surely, 2^245959800840 is an apocalyptic number.

245959800840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245959800840 is an abundant number, since it is smaller than the sum of its proper divisors (614899518480).

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

245959800840 is a wasteful number, since it uses less digits than its factorization.

245959800840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52555543 (or 52555536 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The spelling of 245959800840 in words is "two hundred forty-five billion, nine hundred fifty-nine million, eight hundred thousand, eight hundred forty".