77212383321 has 8 divisors (see below), whose sum is σ = 102955046464. Its totient is φ = 51472321200.

The previous prime is 77212383263. The next prime is 77212383329. The reversal of 77212383321 is 12338321277.

It is a happy number.

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

It is not a de Polignac number, because 77212383321 - 2⁶ = 77212383257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77212383321.

It is not an unprimeable number, because it can be changed into a prime (77212383329) 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, 579901 + ... + 700506.

It is an arithmetic number, because the mean of its divisors is an integer number (12869380808).

Almost surely, 2^77212383321 is an apocalyptic number.

It is an amenable number.

77212383321 is a deficient number, since it is larger than the sum of its proper divisors (25742663143).

77212383321 is a wasteful number, since it uses less digits than its factorization.

77212383321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300511.

The product of its digits is 84672, while the sum is 39.

The spelling of 77212383321 in words is "seventy-seven billion, two hundred twelve million, three hundred eighty-three thousand, three hundred twenty-one".