61089501109 has 16 divisors (see below), whose sum is σ = 77779739520. Its totient is φ = 46667839680.

The previous prime is 61089501101. The next prime is 61089501127. The reversal of 61089501109 is 90110598016.

It is not a de Polignac number, because 61089501109 - 2³ = 61089501101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61089501101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11571727 + ... + 11577004.

It is an arithmetic number, because the mean of its divisors is an integer number (4861233720).

Almost surely, 2^61089501109 is an apocalyptic number.

It is an amenable number.

61089501109 is a deficient number, since it is larger than the sum of its proper divisors (16690238411).

61089501109 is a wasteful number, since it uses less digits than its factorization.

61089501109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23148780.

The product of its (nonzero) digits is 19440, while the sum is 40.

The spelling of 61089501109 in words is "sixty-one billion, eighty-nine million, five hundred one thousand, one hundred nine".