10251421544620 has 48 divisors (see below), whose sum is σ = 22053835063008. Its totient is φ = 4000413795840.

The previous prime is 10251421544561. The next prime is 10251421544621. The reversal of 10251421544620 is 2644512415201.

It is a self number, because there is not a number n which added to its sum of digits gives 10251421544620.

It is not an unprimeable number, because it can be changed into a prime (10251421544621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24799267 + ... + 25209253.

It is an arithmetic number, because the mean of its divisors is an integer number (459454897146).

Almost surely, 2^{10251421544620} is an apocalyptic number.

10251421544620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10251421544620 is an abundant number, since it is smaller than the sum of its proper divisors (11802413518388).

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

10251421544620 is a wasteful number, since it uses less digits than its factorization.

10251421544620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440530 (or 440528 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 37.

Adding to 10251421544620 its reverse (2644512415201), we get a palindrome (12895933959821).

The spelling of 10251421544620 in words is "ten trillion, two hundred fifty-one billion, four hundred twenty-one million, five hundred forty-four thousand, six hundred twenty".