245120413500 has 144 divisors (see below), whose sum is σ = 773541857088. Its totient is φ = 65342736000.

The previous prime is 245120413481. The next prime is 245120413513. The reversal of 245120413500 is 5314021542.

245120413500 is a `hidden beast` number, since 2 + 451 + 204 + 1 + 3 + 5 + 0 + 0 = 666.

It is a super-2 number, since 2×245120413500² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15926809 + ... + 15942191.

It is an arithmetic number, because the mean of its divisors is an integer number (5371818452).

Almost surely, 2^245120413500 is an apocalyptic number.

245120413500 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 245120413500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386770928544).

245120413500 is an abundant number, since it is smaller than the sum of its proper divisors (528421443588).

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

245120413500 is a wasteful number, since it uses less digits than its factorization.

245120413500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18949 (or 18934 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The spelling of 245120413500 in words is "two hundred forty-five billion, one hundred twenty million, four hundred thirteen thousand, five hundred".