51541351412 has 24 divisors (see below), whose sum is σ = 93435499080. Its totient is φ = 24859619840.

The previous prime is 51541351399. The next prime is 51541351423. The reversal of 51541351412 is 21415314515.

It can be written as a sum of positive squares in 4 ways, for example, as 3494464996 + 48046886416 = 59114^2 + 219196^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1751003 + ... + 1780194.

It is an arithmetic number, because the mean of its divisors is an integer number (3893145795).

Almost surely, 2^51541351412 is an apocalyptic number.

It is an amenable number.

51541351412 is a deficient number, since it is larger than the sum of its proper divisors (41894147668).

51541351412 is a wasteful number, since it uses less digits than its factorization.

51541351412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3531331 (or 3531329 counting only the distinct ones).

The product of its digits is 12000, while the sum is 32.

Adding to 51541351412 its reverse (21415314515), we get a palindrome (72956665927).

The spelling of 51541351412 in words is "fifty-one billion, five hundred forty-one million, three hundred fifty-one thousand, four hundred twelve".