51005943502242 has 16 divisors (see below), whose sum is σ = 102037256833152. Its totient is φ = 16997752862640.

The previous prime is 51005943502147. The next prime is 51005943502249. The reversal of 51005943502242 is 24220534950015.

It is a junction number, because it is equal to n+sod(n) for n = 51005943502194 and 51005943502203.

It is not an unprimeable number, because it can be changed into a prime (51005943502249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1057050058 + ... + 1057098309.

It is an arithmetic number, because the mean of its divisors is an integer number (6377328552072).

Almost surely, 2^{51005943502242} is an apocalyptic number.

51005943502242 is an abundant number, since it is smaller than the sum of its proper divisors (51031313330910).

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

51005943502242 is a wasteful number, since it uses less digits than its factorization.

51005943502242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114152393.

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 51005943502242 in words is "fifty-one trillion, five billion, nine hundred forty-three million, five hundred two thousand, two hundred forty-two".