51448047238068 has 48 divisors (see below), whose sum is σ = 129650137545600. Its totient is φ = 15784809715584.

The previous prime is 51448047238061. The next prime is 51448047238109. The reversal of 51448047238068 is 86083274084415.

It is a super-2 number, since 2×51448047238068² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51448047238061) 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, 472431480 + ... + 472540367.

It is an arithmetic number, because the mean of its divisors is an integer number (2701044532200).

Almost surely, 2^{51448047238068} is an apocalyptic number.

It is an amenable number.

51448047238068 is an abundant number, since it is smaller than the sum of its proper divisors (78202090307532).

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

51448047238068 is a wasteful number, since it uses less digits than its factorization.

51448047238068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944972216 (or 944972214 counting only the distinct ones).

The product of its (nonzero) digits is 41287680, while the sum is 60.

The spelling of 51448047238068 in words is "fifty-one trillion, four hundred forty-eight billion, forty-seven million, two hundred thirty-eight thousand, sixty-eight".