245631293280 has 144 divisors (see below), whose sum is σ = 850023012384. Its totient is φ = 64579092480.

The previous prime is 245631293207. The next prime is 245631293309. The reversal of 245631293280 is 82392136542.

245631293280 is a `hidden beast` number, since 2 + 4 + 5 + 6 + 312 + 9 + 328 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 1099009 + ... + 1303488.

It is an arithmetic number, because the mean of its divisors is an integer number (5902937586).

Almost surely, 2^245631293280 is an apocalyptic number.

245631293280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245631293280 is an abundant number, since it is smaller than the sum of its proper divisors (604391719104).

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

245631293280 is a wasteful number, since it uses less digits than its factorization.

245631293280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402589 (or 2402578 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 245631293280 in words is "two hundred forty-five billion, six hundred thirty-one million, two hundred ninety-three thousand, two hundred eighty".