51244360442144 has 96 divisors (see below), whose sum is σ = 103401387048960. Its totient is φ = 24985648800000.

The previous prime is 51244360442089. The next prime is 51244360442201. The reversal of 51244360442144 is 44124406344215.

It is a happy number.

It is a super-2 number, since 2×51244360442144² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51244360442095 and 51244360442104.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5599859969 + ... + 5599869119.

It is an arithmetic number, because the mean of its divisors is an integer number (1077097781760).

Almost surely, 2^{51244360442144} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51244360442144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51700693524480).

51244360442144 is an abundant number, since it is smaller than the sum of its proper divisors (52157026606816).

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

51244360442144 is a wasteful number, since it uses less digits than its factorization.

51244360442144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15374 (or 15366 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 44.

Adding to 51244360442144 its reverse (44124406344215), we get a palindrome (95368766786359).

The spelling of 51244360442144 in words is "fifty-one trillion, two hundred forty-four billion, three hundred sixty million, four hundred forty-two thousand, one hundred forty-four".