61375436007217 has 8 divisors (see below), whose sum is σ = 64620056732000. Its totient is φ = 58132248744384.

The previous prime is 61375436007173. The next prime is 61375436007229. The reversal of 61375436007217 is 71270063457316.

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 61375436007217 - 2⁴³ = 52579342985009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61375436007617) 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, 358277592 + ... + 358448857.

It is an arithmetic number, because the mean of its divisors is an integer number (8077507091500).

Almost surely, 2^{61375436007217} is an apocalyptic number.

It is an amenable number.

61375436007217 is a deficient number, since it is larger than the sum of its proper divisors (3244620724783).

61375436007217 is a wasteful number, since it uses less digits than its factorization.

61375436007217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716730975.

The product of its (nonzero) digits is 4445280, while the sum is 52.

The spelling of 61375436007217 in words is "sixty-one trillion, three hundred seventy-five billion, four hundred thirty-six million, seven thousand, two hundred seventeen".