49731064185653 has 4 divisors (see below), whose sum is σ = 50018526984588. Its totient is φ = 49443601386720.

The previous prime is 49731064185641. The next prime is 49731064185683. The reversal of 49731064185653 is 35658146013794.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20020094281924 + 29710969903729 = 4474382^2 + 5450777^2 .

It is a cyclic number.

It is not a de Polignac number, because 49731064185653 - 2⁶ = 49731064185589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49731064185683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143731399208 + ... + 143731399553.

It is an arithmetic number, because the mean of its divisors is an integer number (12504631746147).

Almost surely, 2^{49731064185653} is an apocalyptic number.

It is an amenable number.

49731064185653 is a deficient number, since it is larger than the sum of its proper divisors (287462798935).

49731064185653 is a wasteful number, since it uses less digits than its factorization.

49731064185653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287462798934.

The product of its (nonzero) digits is 65318400, while the sum is 62.

The spelling of 49731064185653 in words is "forty-nine trillion, seven hundred thirty-one billion, sixty-four million, one hundred eighty-five thousand, six hundred fifty-three".