49385593645 has 8 divisors (see below), whose sum is σ = 61306254360. Its totient is φ = 38146113600.

The previous prime is 49385593639. The next prime is 49385593667. The reversal of 49385593645 is 54639558394.

It can be written as a sum of positive squares in 4 ways, for example, as 138438756 + 49247154889 = 11766^2 + 221917^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49385593645 - 2²¹ = 49383496493 is a prime.

It is a super-3 number, since 3×49385593645³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170295006 + ... + 170295295.

It is an arithmetic number, because the mean of its divisors is an integer number (7663281795).

Almost surely, 2^49385593645 is an apocalyptic number.

It is an amenable number.

49385593645 is a deficient number, since it is larger than the sum of its proper divisors (11920660715).

49385593645 is a wasteful number, since it uses less digits than its factorization.

49385593645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340590335.

The product of its digits is 69984000, while the sum is 61.

The spelling of 49385593645 in words is "forty-nine billion, three hundred eighty-five million, five hundred ninety-three thousand, six hundred forty-five".