49172829813 has 20 divisors (see below), whose sum is σ = 73463277888. Its totient is φ = 32778508680.

The previous prime is 49172829779. The next prime is 49172829821. The reversal of 49172829813 is 31892827194.

49172829813 is a `hidden beast` number, since 491 + 72 + 8 + 2 + 9 + 81 + 3 = 666.

It is not a de Polignac number, because 49172829813 - 2¹⁸ = 49172567669 is a prime.

It is a super-2 number, since 2×49172829813² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49172829813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49172869813) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 947620 + ... + 998162.

Almost surely, 2^49172829813 is an apocalyptic number.

It is an amenable number.

49172829813 is a deficient number, since it is larger than the sum of its proper divisors (24290448075).

49172829813 is a wasteful number, since it uses less digits than its factorization.

49172829813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62566 (or 62557 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The spelling of 49172829813 in words is "forty-nine billion, one hundred seventy-two million, eight hundred twenty-nine thousand, eight hundred thirteen".