61374321343563 has 8 divisors (see below), whose sum is σ = 81967243004928. Its totient is φ = 40848806955624.

The previous prime is 61374321343481. The next prime is 61374321343589. The reversal of 61374321343563 is 36534312347316.

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

It is not a de Polignac number, because 61374321343563 - 2²¹ = 61374319246411 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (61374321343163) 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, 16851816231 + ... + 16851819872.

It is an arithmetic number, because the mean of its divisors is an integer number (10245905375616).

Almost surely, 2^{61374321343563} is an apocalyptic number.

61374321343563 is a deficient number, since it is larger than the sum of its proper divisors (20592921661365).

61374321343563 is a wasteful number, since it uses less digits than its factorization.

61374321343563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33703636713.

The product of its digits is 9797760, while the sum is 51.

The spelling of 61374321343563 in words is "sixty-one trillion, three hundred seventy-four billion, three hundred twenty-one million, three hundred forty-three thousand, five hundred sixty-three".