51540433421112 has 48 divisors (see below), whose sum is σ = 140002883629440. Its totient is φ = 17129164808448.

The previous prime is 51540433421041. The next prime is 51540433421149. The reversal of 51540433421112 is 21112433404515.

51540433421112 is a `hidden beast` number, since 5 + 1 + 5 + 4 + 0 + 433 + 4 + 211 + 1 + 2 = 666.

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 11 ways as a sum of consecutive naturals, for example, 1062051928 + ... + 1062100455.

It is an arithmetic number, because the mean of its divisors is an integer number (2916726742280).

Almost surely, 2^{51540433421112} is an apocalyptic number.

It is an amenable number.

51540433421112 is an abundant number, since it is smaller than the sum of its proper divisors (88462450208328).

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

51540433421112 is a wasteful number, since it uses less digits than its factorization.

51540433421112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2124152732 (or 2124152725 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 51540433421112 its reverse (21112433404515), we get a palindrome (72652866825627).

The spelling of 51540433421112 in words is "fifty-one trillion, five hundred forty billion, four hundred thirty-three million, four hundred twenty-one thousand, one hundred twelve".