61773303321 has 16 divisors (see below), whose sum is σ = 91691680320. Its totient is φ = 41103148320.

The previous prime is 61773303311. The next prime is 61773303337. The reversal of 61773303321 is 12330337716.

It is a happy number.

61773303321 is a `hidden beast` number, since 617 + 7 + 3 + 3 + 0 + 3 + 32 + 1 = 666.

It is not a de Polignac number, because 61773303321 - 2¹⁵ = 61773270553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61773303311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2181615 + ... + 2209748.

It is an arithmetic number, because the mean of its divisors is an integer number (5730730020).

Almost surely, 2^61773303321 is an apocalyptic number.

It is an amenable number.

61773303321 is a deficient number, since it is larger than the sum of its proper divisors (29918376999).

61773303321 is a wasteful number, since it uses less digits than its factorization.

61773303321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4391893 (or 4391887 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 36.

The spelling of 61773303321 in words is "sixty-one billion, seven hundred seventy-three million, three hundred three thousand, three hundred twenty-one".