61410827553 has 4 divisors (see below), whose sum is σ = 81881103408. Its totient is φ = 40940551700.

The previous prime is 61410827507. The next prime is 61410827617. The reversal of 61410827553 is 35572801416.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 61410827553 - 2²⁴ = 61394050337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61410827053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10235137923 + ... + 10235137928.

It is an arithmetic number, because the mean of its divisors is an integer number (20470275852).

Almost surely, 2^61410827553 is an apocalyptic number.

It is an amenable number.

61410827553 is a deficient number, since it is larger than the sum of its proper divisors (20470275855).

61410827553 is a wasteful number, since it uses less digits than its factorization.

61410827553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20470275854.

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 61410827553 in words is "sixty-one billion, four hundred ten million, eight hundred twenty-seven thousand, five hundred fifty-three".