61218300705 has 8 divisors (see below), whose sum is σ = 97949281152. Its totient is φ = 32649760368.

The previous prime is 61218300701. The next prime is 61218300709. The reversal of 61218300705 is 50700381216.

It is an interprime number because it is at equal distance from previous prime (61218300701) and next prime (61218300709).

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

It is not a de Polignac number, because 61218300705 - 2² = 61218300701 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61218300701) 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, 2040610009 + ... + 2040610038.

It is an arithmetic number, because the mean of its divisors is an integer number (12243660144).

Almost surely, 2^61218300705 is an apocalyptic number.

It is an amenable number.

61218300705 is a deficient number, since it is larger than the sum of its proper divisors (36730980447).

61218300705 is a wasteful number, since it uses less digits than its factorization.

61218300705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4081220055.

The product of its (nonzero) digits is 10080, while the sum is 33.

The spelling of 61218300705 in words is "sixty-one billion, two hundred eighteen million, three hundred thousand, seven hundred five".