61264854502135 has 4 divisors (see below), whose sum is σ = 73517825402568. Its totient is φ = 49011883601704.

The previous prime is 61264854502129. The next prime is 61264854502171. The reversal of 61264854502135 is 53120545846216.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61264854502135 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6126485450209 + ... + 6126485450218.

It is an arithmetic number, because the mean of its divisors is an integer number (18379456350642).

Almost surely, 2^{61264854502135} is an apocalyptic number.

61264854502135 is a deficient number, since it is larger than the sum of its proper divisors (12252970900433).

61264854502135 is a wasteful number, since it uses less digits than its factorization.

61264854502135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12252970900432.

The product of its (nonzero) digits is 6912000, while the sum is 52.

The spelling of 61264854502135 in words is "sixty-one trillion, two hundred sixty-four billion, eight hundred fifty-four million, five hundred two thousand, one hundred thirty-five".