51234032412 has 96 divisors (see below), whose sum is σ = 135807114240. Its totient is φ = 16695924480.

The previous prime is 51234032327. The next prime is 51234032477. The reversal of 51234032412 is 21423043215.

51234032412 is a `hidden beast` number, since 5 + 12 + 3 + 403 + 241 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4954087 + ... + 4964417.

It is an arithmetic number, because the mean of its divisors is an integer number (1414657440).

Almost surely, 2^51234032412 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 51234032412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67903557120).

51234032412 is an abundant number, since it is smaller than the sum of its proper divisors (84573081828).

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

51234032412 is a wasteful number, since it uses less digits than its factorization.

51234032412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11368 (or 11360 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 51234032412 its reverse (21423043215), we get a palindrome (72657075627).

The spelling of 51234032412 in words is "fifty-one billion, two hundred thirty-four million, thirty-two thousand, four hundred twelve".