245423520000 has 900 divisors, whose sum is σ = 947450015820. Its totient is φ = 63092736000.

The previous prime is 245423519969. The next prime is 245423520007. The reversal of 245423520000 is 25324542.

It is a happy number.

245423520000 is a `hidden beast` number, since 2 + 454 + 2 + 3 + 5 + 200 + 0 + 0 = 666.

It can be written as a sum of positive squares in 10 ways, for example, as 212867813376 + 32555706624 = 461376^2 + 180432^2 .

It is a tau number, because it is divible by the number of its divisors (900).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (245423520007) by changing a digit.

It is a polite number, since it can be written in 99 ways as a sum of consecutive naturals, for example, 375839674 + ... + 375840326.

Almost surely, 2^245423520000 is an apocalyptic number.

245423520000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245423520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (473725007910).

245423520000 is an abundant number, since it is smaller than the sum of its proper divisors (702026495820).

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

245423520000 is an frugal number, since it uses more digits than its factorization.

245423520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730 (or 692 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

Adding to 245423520000 its reverse (25324542), we get a palindrome (245448844542).

The spelling of 245423520000 in words is "two hundred forty-five billion, four hundred twenty-three million, five hundred twenty thousand".