61275136667 has 8 divisors (see below), whose sum is σ = 64623954960. Its totient is φ = 57938699520.

The previous prime is 61275136613. The next prime is 61275136669. The reversal of 61275136667 is 76663157216.

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 61275136667 - 2¹⁰ = 61275135643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61275136669) 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, 3085118 + ... + 3104915.

It is an arithmetic number, because the mean of its divisors is an integer number (8077994370).

Almost surely, 2^61275136667 is an apocalyptic number.

61275136667 is a deficient number, since it is larger than the sum of its proper divisors (3348818293).

61275136667 is a wasteful number, since it uses less digits than its factorization.

61275136667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6190573.

The product of its digits is 1905120, while the sum is 50.

The spelling of 61275136667 in words is "sixty-one billion, two hundred seventy-five million, one hundred thirty-six thousand, six hundred sixty-seven".