77212321741 has 16 divisors (see below), whose sum is σ = 80900322048. Its totient is φ = 73552336000.

The previous prime is 77212321661. The next prime is 77212321757. The reversal of 77212321741 is 14712321277.

It is a cyclic number.

It is not a de Polignac number, because 77212321741 - 2¹¹ = 77212319693 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 77212321741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77212322741) 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, 9301905 + ... + 9310201.

It is an arithmetic number, because the mean of its divisors is an integer number (5056270128).

Almost surely, 2^77212321741 is an apocalyptic number.

It is an amenable number.

77212321741 is a deficient number, since it is larger than the sum of its proper divisors (3688000307).

77212321741 is a wasteful number, since it uses less digits than its factorization.

77212321741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9932.

The product of its digits is 32928, while the sum is 37.

The spelling of 77212321741 in words is "seventy-seven billion, two hundred twelve million, three hundred twenty-one thousand, seven hundred forty-one".