61423117187 has 8 divisors (see below), whose sum is σ = 63471070080. Its totient is φ = 59379324480.

The previous prime is 61423117157. The next prime is 61423117207. The reversal of 61423117187 is 78171132416.

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

It is not a de Polignac number, because 61423117187 - 2¹⁴ = 61423100803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61423117117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1010012 + ... + 1069097.

It is an arithmetic number, because the mean of its divisors is an integer number (7933883760).

Almost surely, 2^61423117187 is an apocalyptic number.

61423117187 is a deficient number, since it is larger than the sum of its proper divisors (2047952893).

61423117187 is a wasteful number, since it uses less digits than its factorization.

61423117187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2080093.

The product of its digits is 56448, while the sum is 41.

The spelling of 61423117187 in words is "sixty-one billion, four hundred twenty-three million, one hundred seventeen thousand, one hundred eighty-seven".