61396156193 has 4 divisors (see below), whose sum is σ = 61455707328. Its totient is φ = 61336605060.

The previous prime is 61396156189. The next prime is 61396156249. The reversal of 61396156193 is 39165169316.

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 61396156193 - 2² = 61396156189 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61396156163) 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 3 ways as a sum of consecutive naturals, for example, 29774021 + ... + 29776082.

It is an arithmetic number, because the mean of its divisors is an integer number (15363926832).

Almost surely, 2^61396156193 is an apocalyptic number.

It is an amenable number.

61396156193 is a deficient number, since it is larger than the sum of its proper divisors (59551135).

61396156193 is a wasteful number, since it uses less digits than its factorization.

61396156193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59551134.

The product of its digits is 787320, while the sum is 50.

The spelling of 61396156193 in words is "sixty-one billion, three hundred ninety-six million, one hundred fifty-six thousand, one hundred ninety-three".