61089142195 has 8 divisors (see below), whose sum is σ = 73316533536. Its totient is φ = 48864938496.

The previous prime is 61089142193. The next prime is 61089142259. The reversal of 61089142195 is 59124198016.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61089142195 - 2¹ = 61089142193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61089142193) 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 7 ways as a sum of consecutive naturals, for example, 754542 + ... + 831571.

It is an arithmetic number, because the mean of its divisors is an integer number (9164566692).

Almost surely, 2^61089142195 is an apocalyptic number.

61089142195 is a deficient number, since it is larger than the sum of its proper divisors (12227391341).

61089142195 is a wasteful number, since it uses less digits than its factorization.

61089142195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593821.

The product of its (nonzero) digits is 155520, while the sum is 46.

The spelling of 61089142195 in words is "sixty-one billion, eighty-nine million, one hundred forty-two thousand, one hundred ninety-five".