51483398440506 has 16 divisors (see below), whose sum is σ = 102984467587104. Its totient is φ = 17158187695824.

The previous prime is 51483398440459. The next prime is 51483398440543. The reversal of 51483398440506 is 60504489338415.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 51483398440506.

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, 736241545 + ... + 736311468.

It is an arithmetic number, because the mean of its divisors is an integer number (6436529224194).

Almost surely, 2^{51483398440506} is an apocalyptic number.

51483398440506 is an abundant number, since it is smaller than the sum of its proper divisors (51501069146598).

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

51483398440506 is a wasteful number, since it uses less digits than its factorization.

51483398440506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472558845.

The product of its (nonzero) digits is 49766400, while the sum is 60.

The spelling of 51483398440506 in words is "fifty-one trillion, four hundred eighty-three billion, three hundred ninety-eight million, four hundred forty thousand, five hundred six".