77245328183725 has 48 divisors (see below), whose sum is σ = 105672388565520. Its totient is φ = 55649176012800.

The previous prime is 77245328183707. The next prime is 77245328183789. The reversal of 77245328183725 is 52738182354277.

It can be written as a sum of positive squares in 24 ways, for example, as 76617617416201 + 627710767524 = 8753149^2 + 792282^2 .

It is not a de Polignac number, because 77245328183725 - 2¹¹ = 77245328181677 is a prime.

It is a super-2 number, since 2×77245328183725² (a number of 29 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 376048747 + ... + 376254103.

It is an arithmetic number, because the mean of its divisors is an integer number (2201508095115).

Almost surely, 2^{77245328183725} is an apocalyptic number.

It is an amenable number.

77245328183725 is a deficient number, since it is larger than the sum of its proper divisors (28427060381795).

77245328183725 is a wasteful number, since it uses less digits than its factorization.

77245328183725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233650 (or 233645 counting only the distinct ones).

The product of its digits is 158054400, while the sum is 64.

The spelling of 77245328183725 in words is "seventy-seven trillion, two hundred forty-five billion, three hundred twenty-eight million, one hundred eighty-three thousand, seven hundred twenty-five".