77245322143 has 8 divisors (see below), whose sum is σ = 89224543440. Its totient is φ = 66092254080.

The previous prime is 77245322107. The next prime is 77245322153. The reversal of 77245322143 is 34122354277.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77245322143 is a prime.

It is a super-2 number, since 2×77245322143² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77245322096 and 77245322105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77245322153) 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, 206538108 + ... + 206538481.

It is an arithmetic number, because the mean of its divisors is an integer number (11153067930).

Almost surely, 2^77245322143 is an apocalyptic number.

77245322143 is a deficient number, since it is larger than the sum of its proper divisors (11979221297).

77245322143 is a wasteful number, since it uses less digits than its factorization.

77245322143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413076617.

The product of its digits is 282240, while the sum is 40.

The spelling of 77245322143 in words is "seventy-seven billion, two hundred forty-five million, three hundred twenty-two thousand, one hundred forty-three".