51041349072 has 280 divisors, whose sum is σ = 170243371584. Its totient is φ = 14515241472.

The previous prime is 51041349059. The next prime is 51041349103. The reversal of 51041349072 is 27094314015.

51041349072 is a `hidden beast` number, since 510 + 4 + 134 + 9 + 0 + 7 + 2 = 666.

51041349072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51041349072² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 19022643 + ... + 19025325.

Almost surely, 2^51041349072 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 51041349072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85121685792).

51041349072 is an abundant number, since it is smaller than the sum of its proper divisors (119202022512).

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

51041349072 is a wasteful number, since it uses less digits than its factorization.

51041349072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2949 (or 2928 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 51041349072 in words is "fifty-one billion, forty-one million, three hundred forty-nine thousand, seventy-two".