77225853361 has 8 divisors (see below), whose sum is σ = 79471016064. Its totient is φ = 75005776560.

The previous prime is 77225853349. The next prime is 77225853389. The reversal of 77225853361 is 16335852277.

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-77225853361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77225853161) 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, 6265230 + ... + 6277543.

It is an arithmetic number, because the mean of its divisors is an integer number (9933877008).

Almost surely, 2^77225853361 is an apocalyptic number.

It is an amenable number.

77225853361 is a deficient number, since it is larger than the sum of its proper divisors (2245162703).

77225853361 is a wasteful number, since it uses less digits than its factorization.

77225853361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12542951.

The product of its digits is 2116800, while the sum is 49.

The spelling of 77225853361 in words is "seventy-seven billion, two hundred twenty-five million, eight hundred fifty-three thousand, three hundred sixty-one".