245423000000 has 196 divisors, whose sum is σ = 640845703320. Its totient is φ = 92995200000.

The previous prime is 245422999999. The next prime is 245423000021. The reversal of 245423000000 is 324542.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 18993542 + ... + 19006458.

Almost surely, 2^245423000000 is an apocalyptic number.

245423000000 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 245423000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320422851660).

245423000000 is an abundant number, since it is smaller than the sum of its proper divisors (395422703320).

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

245423000000 is an frugal number, since it uses more digits than its factorization.

245423000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12978 (or 12943 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

Adding to 245423000000 its reverse (324542), we get a palindrome (245423324542).

The spelling of 245423000000 in words is "two hundred forty-five billion, four hundred twenty-three million", and thus it is an aban number.