49001135823 has 12 divisors (see below), whose sum is σ = 71288624680. Its totient is φ = 32432405616.

The previous prime is 49001135809. The next prime is 49001135837. The reversal of 49001135823 is 32853110094.

49001135823 is a `hidden beast` number, since 490 + 0 + 113 + 58 + 2 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (49001135809) and next prime (49001135837).

It is not a de Polignac number, because 49001135823 - 2¹³ = 49001127631 is a prime.

It is a super-2 number, since 2×49001135823² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49001135803) 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 11 ways as a sum of consecutive naturals, for example, 19583536 + ... + 19586037.

Almost surely, 2^49001135823 is an apocalyptic number.

49001135823 is a deficient number, since it is larger than the sum of its proper divisors (22287488857).

49001135823 is a wasteful number, since it uses less digits than its factorization.

49001135823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39169718 (or 39169715 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 49001135823 in words is "forty-nine billion, one million, one hundred thirty-five thousand, eight hundred twenty-three".