77245602243 has 16 divisors (see below), whose sum is σ = 104055051936. Its totient is φ = 50967014400.

The previous prime is 77245602241. The next prime is 77245602283. The reversal of 77245602243 is 34220654277.

It is not a de Polignac number, because 77245602243 - 2¹ = 77245602241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77245602195 and 77245602204.

It is not an unprimeable number, because it can be changed into a prime (77245602241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 736521 + ... + 834837.

It is an arithmetic number, because the mean of its divisors is an integer number (6503440746).

Almost surely, 2^77245602243 is an apocalyptic number.

77245602243 is a deficient number, since it is larger than the sum of its proper divisors (26809449693).

77245602243 is a wasteful number, since it uses less digits than its factorization.

77245602243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101014.

The product of its (nonzero) digits is 564480, while the sum is 42.

The spelling of 77245602243 in words is "seventy-seven billion, two hundred forty-five million, six hundred two thousand, two hundred forty-three".