49136867145 has 12 divisors (see below), whose sum is σ = 85170569796. Its totient is φ = 26206329120.

The previous prime is 49136867123. The next prime is 49136867147. The reversal of 49136867145 is 54176863194.

49136867145 is a `hidden beast` number, since 491 + 3 + 6 + 8 + 6 + 7 + 145 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9225218304 + 39911648841 = 96048^2 + 199779^2 .

It is not a de Polignac number, because 49136867145 - 2¹⁵ = 49136834377 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49136867091 and 49136867100.

It is not an unprimeable number, because it can be changed into a prime (49136867147) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 545965146 + ... + 545965235.

It is an arithmetic number, because the mean of its divisors is an integer number (7097547483).

Almost surely, 2^49136867145 is an apocalyptic number.

49136867145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49136867145 is a deficient number, since it is larger than the sum of its proper divisors (36033702651).

49136867145 is a wasteful number, since it uses less digits than its factorization.

49136867145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091930392 (or 1091930389 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 49136867145 in words is "forty-nine billion, one hundred thirty-six million, eight hundred sixty-seven thousand, one hundred forty-five".