61767430666613 has 8 divisors (see below), whose sum is σ = 73025533793280. Its totient is φ = 51117873654960.

The previous prime is 61767430666583. The next prime is 61767430666637. The reversal of 61767430666613 is 31666603476716.

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

It is not a de Polignac number, because 61767430666613 - 2¹⁶ = 61767430601077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61767430626613) 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, 152136528533 + ... + 152136528938.

It is an arithmetic number, because the mean of its divisors is an integer number (9128191724160).

Almost surely, 2^{61767430666613} is an apocalyptic number.

It is an amenable number.

61767430666613 is a deficient number, since it is larger than the sum of its proper divisors (11258103126667).

61767430666613 is a wasteful number, since it uses less digits than its factorization.

61767430666613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304273057507.

The product of its (nonzero) digits is 82301184, while the sum is 62.

The spelling of 61767430666613 in words is "sixty-one trillion, seven hundred sixty-seven billion, four hundred thirty million, six hundred sixty-six thousand, six hundred thirteen".