53715135649 has 4 divisors (see below), whose sum is σ = 61388726464. Its totient is φ = 46041544836.

The previous prime is 53715135631. The next prime is 53715135659. The reversal of 53715135649 is 94653151735.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 53715135649 - 2³¹ = 51567652001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53715135659) 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 3 ways as a sum of consecutive naturals, for example, 3836795397 + ... + 3836795410.

It is an arithmetic number, because the mean of its divisors is an integer number (15347181616).

Almost surely, 2^53715135649 is an apocalyptic number.

It is an amenable number.

53715135649 is a deficient number, since it is larger than the sum of its proper divisors (7673590815).

53715135649 is an equidigital number, since it uses as much as digits as its factorization.

53715135649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7673590814.

The product of its digits is 1701000, while the sum is 49.

The spelling of 53715135649 in words is "fifty-three billion, seven hundred fifteen million, one hundred thirty-five thousand, six hundred forty-nine".