244461457612421 has 24 divisors (see below), whose sum is σ = 299459962391040. Its totient is φ = 198589238017632.

The previous prime is 244461457612417. The next prime is 244461457612441. The reversal of 244461457612421 is 124216754164442.

It is not a de Polignac number, because 244461457612421 - 2² = 244461457612417 is a prime.

It is a super-2 number, since 2×244461457612421² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244461457612441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 994892981 + ... + 995138666.

It is an arithmetic number, because the mean of its divisors is an integer number (12477498432960).

Almost surely, 2^{244461457612421} is an apocalyptic number.

It is an amenable number.

244461457612421 is a deficient number, since it is larger than the sum of its proper divisors (54998504778619).

244461457612421 is a wasteful number, since it uses less digits than its factorization.

244461457612421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990031793 (or 1990031786 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 53.

The spelling of 244461457612421 in words is "two hundred forty-four trillion, four hundred sixty-one billion, four hundred fifty-seven million, six hundred twelve thousand, four hundred twenty-one".