49865451602 has 6 divisors (see below), whose sum is σ = 74798651109. Its totient is φ = 24932567900.

The previous prime is 49865451583. The next prime is 49865451617. The reversal of 49865451602 is 20615456894.

It can be written as a sum of positive squares in 2 ways, for example, as 47664059041 + 2201392561 = 218321^2 + 46919^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=157901.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 236852 + ... + 394752.

Almost surely, 2^49865451602 is an apocalyptic number.

49865451602 is a deficient number, since it is larger than the sum of its proper divisors (24933199507).

49865451602 is an frugal number, since it uses more digits than its factorization.

49865451602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315804 (or 157903 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 50.

Multiplying 49865451602 by its sum of digits (50), we get a square (2493272580100 = 1579010²).

The spelling of 49865451602 in words is "forty-nine billion, eight hundred sixty-five million, four hundred fifty-one thousand, six hundred two".