51402354312 has 32 divisors (see below), whose sum is σ = 129151656000. Its totient is φ = 17048015424.

The previous prime is 51402354281. The next prime is 51402354329. The reversal of 51402354312 is 21345320415.

It is a self number, because there is not a number n which added to its sum of digits gives 51402354312.

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, 5376543 + ... + 5386094.

It is an arithmetic number, because the mean of its divisors is an integer number (4035989250).

Almost surely, 2^51402354312 is an apocalyptic number.

It is an amenable number.

51402354312 is an abundant number, since it is smaller than the sum of its proper divisors (77749301688).

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

51402354312 is a wasteful number, since it uses less digits than its factorization.

51402354312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10762845 (or 10762841 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 51402354312 its reverse (21345320415), we get a palindrome (72747674727).

The spelling of 51402354312 in words is "fifty-one billion, four hundred two million, three hundred fifty-four thousand, three hundred twelve".