51411258724 has 48 divisors (see below), whose sum is σ = 105594256768. Its totient is φ = 21443159808.

The previous prime is 51411258721. The next prime is 51411258757. The reversal of 51411258724 is 42785211415.

It is a super-2 number, since 2×51411258724² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51411258721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256432 + ... + 410584.

Almost surely, 2^51411258724 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 51411258724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52797128384).

51411258724 is an abundant number, since it is smaller than the sum of its proper divisors (54182998044).

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

51411258724 is a wasteful number, since it uses less digits than its factorization.

51411258724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154484 (or 154482 counting only the distinct ones).

The product of its digits is 89600, while the sum is 40.

The spelling of 51411258724 in words is "fifty-one billion, four hundred eleven million, two hundred fifty-eight thousand, seven hundred twenty-four".