77000334421 has 8 divisors (see below), whose sum is σ = 80350963200. Its totient is φ = 73649938032.

The previous prime is 77000334413. The next prime is 77000334461. The reversal of 77000334421 is 12443300077.

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 77000334421 - 2³ = 77000334413 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 (77000334461) 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, 1186780 + ... + 1249978.

It is an arithmetic number, because the mean of its divisors is an integer number (10043870400).

Almost surely, 2^77000334421 is an apocalyptic number.

It is an amenable number.

77000334421 is a deficient number, since it is larger than the sum of its proper divisors (3350628779).

77000334421 is a wasteful number, since it uses less digits than its factorization.

77000334421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116195.

The product of its (nonzero) digits is 14112, while the sum is 31.

Adding to 77000334421 its reverse (12443300077), we get a palindrome (89443634498).

The spelling of 77000334421 in words is "seventy-seven billion, three hundred thirty-four thousand, four hundred twenty-one".