61359813145 has 8 divisors (see below), whose sum is σ = 74211554304. Its totient is φ = 48701331504.

The previous prime is 61359813143. The next prime is 61359813161. The reversal of 61359813145 is 54131895316.

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 61359813145 - 2¹ = 61359813143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61359813095 and 61359813104.

It is not an unprimeable number, because it can be changed into a prime (61359813143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48314179 + ... + 48315448.

It is an arithmetic number, because the mean of its divisors is an integer number (9276444288).

Almost surely, 2^61359813145 is an apocalyptic number.

It is an amenable number.

61359813145 is a deficient number, since it is larger than the sum of its proper divisors (12851741159).

61359813145 is a wasteful number, since it uses less digits than its factorization.

61359813145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96629759.

The product of its digits is 388800, while the sum is 46.

The spelling of 61359813145 in words is "sixty-one billion, three hundred fifty-nine million, eight hundred thirteen thousand, one hundred forty-five".