61009191395 has 16 divisors (see below), whose sum is σ = 73410835680. Its totient is φ = 48674256384.

The previous prime is 61009191307. The next prime is 61009191427. The reversal of 61009191395 is 59319190016.

It is a cyclic number.

It is not a de Polignac number, because 61009191395 - 2¹⁰ = 61009190371 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5924411 + ... + 5934699.

It is an arithmetic number, because the mean of its divisors is an integer number (4588177230).

Almost surely, 2^61009191395 is an apocalyptic number.

61009191395 is a deficient number, since it is larger than the sum of its proper divisors (12401644285).

61009191395 is a wasteful number, since it uses less digits than its factorization.

61009191395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13414.

The product of its (nonzero) digits is 65610, while the sum is 44.

The spelling of 61009191395 in words is "sixty-one billion, nine million, one hundred ninety-one thousand, three hundred ninety-five".