245421214023140 has 24 divisors (see below), whose sum is σ = 515385057086592. Its totient is φ = 98168388916320.

The previous prime is 245421214023127. The next prime is 245421214023143. The reversal of 245421214023140 is 41320412124542.

It is a self number, because there is not a number n which added to its sum of digits gives 245421214023140.

It is not an unprimeable number, because it can be changed into a prime (245421214023143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16892645 + ... + 27860435.

It is an arithmetic number, because the mean of its divisors is an integer number (21474377378608).

Almost surely, 2^{245421214023140} is an apocalyptic number.

245421214023140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245421214023140 is an abundant number, since it is smaller than the sum of its proper divisors (269963843063452).

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

245421214023140 is a wasteful number, since it uses less digits than its factorization.

245421214023140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12086627 (or 12086625 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 35.

Adding to 245421214023140 its reverse (41320412124542), we get a palindrome (286741626147682).

It can be divided in two parts, 24542121402 and 3140, that added together give a palindrome (24542124542).

The spelling of 245421214023140 in words is "two hundred forty-five trillion, four hundred twenty-one billion, two hundred fourteen million, twenty-three thousand, one hundred forty".