49783143645 has 96 divisors (see below), whose sum is σ = 94378515840. Its totient is φ = 24891909120.

The previous prime is 49783143611. The next prime is 49783143671. The reversal of 49783143645 is 54634138794.

49783143645 is a `hidden beast` number, since 4 + 97 + 83 + 1 + 436 + 45 = 666.

It is not a de Polignac number, because 49783143645 - 2¹⁰ = 49783142621 is a prime.

It is a super-2 number, since 2×49783143645² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 49783143591 and 49783143600.

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 95 ways as a sum of consecutive naturals, for example, 4722030 + ... + 4732560.

It is an arithmetic number, because the mean of its divisors is an integer number (983109540).

Almost surely, 2^49783143645 is an apocalyptic number.

49783143645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49783143645 is a deficient number, since it is larger than the sum of its proper divisors (44595372195).

49783143645 is a wasteful number, since it uses less digits than its factorization.

49783143645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10680 (or 10655 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The spelling of 49783143645 in words is "forty-nine billion, seven hundred eighty-three million, one hundred forty-three thousand, six hundred forty-five".