245992870807140 has 96 divisors (see below), whose sum is σ = 693331580833920. Its totient is φ = 65164816843776.

The previous prime is 245992870807133. The next prime is 245992870807141. The reversal of 245992870807140 is 41708078299542.

It is not an unprimeable number, because it can be changed into a prime (245992870807141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36648184 + ... + 42837776.

It is an arithmetic number, because the mean of its divisors is an integer number (7222203967020).

Almost surely, 2^{245992870807140} is an apocalyptic number.

245992870807140 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 245992870807140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346665790416960).

245992870807140 is an abundant number, since it is smaller than the sum of its proper divisors (447338710026780).

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

245992870807140 is a wasteful number, since it uses less digits than its factorization.

245992870807140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6193981 (or 6193979 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 66.

The spelling of 245992870807140 in words is "two hundred forty-five trillion, nine hundred ninety-two billion, eight hundred seventy million, eight hundred seven thousand, one hundred forty".