50545138317945 has 16 divisors (see below), whose sum is σ = 81705955551360. Its totient is φ = 26679495688704.

The previous prime is 50545138317923. The next prime is 50545138317977. The reversal of 50545138317945 is 54971383154505.

It is not a de Polignac number, because 50545138317945 - 2¹⁴ = 50545138301561 is a prime.

It is a super-2 number, since 2×50545138317945² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17369461885 + ... + 17369464794.

It is an arithmetic number, because the mean of its divisors is an integer number (5106622221960).

Almost surely, 2^{50545138317945} is an apocalyptic number.

It is an amenable number.

50545138317945 is a deficient number, since it is larger than the sum of its proper divisors (31160817233415).

50545138317945 is a wasteful number, since it uses less digits than its factorization.

50545138317945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34738926784.

The product of its (nonzero) digits is 45360000, while the sum is 60.

The spelling of 50545138317945 in words is "fifty trillion, five hundred forty-five billion, one hundred thirty-eight million, three hundred seventeen thousand, nine hundred forty-five".