61676393221 has 8 divisors (see below), whose sum is σ = 64924798400. Its totient is φ = 58428216000.

The previous prime is 61676393209. The next prime is 61676393243. The reversal of 61676393221 is 12239367616.

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 61676393221 - 2⁵ = 61676393189 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 (61676393321) 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, 1039096 + ... + 1096846.

It is an arithmetic number, because the mean of its divisors is an integer number (8115599800).

Almost surely, 2^61676393221 is an apocalyptic number.

It is an amenable number.

61676393221 is a deficient number, since it is larger than the sum of its proper divisors (3248405179).

61676393221 is a wasteful number, since it uses less digits than its factorization.

61676393221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113979.

The product of its digits is 489888, while the sum is 46.

The spelling of 61676393221 in words is "sixty-one billion, six hundred seventy-six million, three hundred ninety-three thousand, two hundred twenty-one".