61411501215245 has 8 divisors (see below), whose sum is σ = 73697216974584. Its totient is φ = 49126923961344.

The previous prime is 61411501215209. The next prime is 61411501215287. The reversal of 61411501215245 is 54251210511416.

It can be written as a sum of positive squares in 4 ways, for example, as 4808358683209 + 56603142532036 = 2192797^2 + 7523506^2 .

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 61411501215245 - 2²⁶ = 61411434106381 is a prime.

It is a super-2 number, since 2×61411501215245² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61411501215199 and 61411501215208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284507684 + ... + 284723453.

It is an arithmetic number, because the mean of its divisors is an integer number (9212152121823).

Almost surely, 2^{61411501215245} is an apocalyptic number.

It is an amenable number.

61411501215245 is a deficient number, since it is larger than the sum of its proper divisors (12285715759339).

61411501215245 is a wasteful number, since it uses less digits than its factorization.

61411501215245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569252719.

The product of its (nonzero) digits is 48000, while the sum is 38.

The spelling of 61411501215245 in words is "sixty-one trillion, four hundred eleven billion, five hundred one million, two hundred fifteen thousand, two hundred forty-five".