77245526113616 has 80 divisors (see below), whose sum is σ = 177001300775040. Its totient is φ = 31952903431680.

The previous prime is 77245526113571. The next prime is 77245526113649. The reversal of 77245526113616 is 61631162554277.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5647370 + ... + 13652246.

It is an arithmetic number, because the mean of its divisors is an integer number (2212516259688).

Almost surely, 2^{77245526113616} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77245526113616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88500650387520).

77245526113616 is an abundant number, since it is smaller than the sum of its proper divisors (99755774661424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77245526113616 is a wasteful number, since it uses less digits than its factorization.

77245526113616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8007892 (or 8007886 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 56.

The spelling of 77245526113616 in words is "seventy-seven trillion, two hundred forty-five billion, five hundred twenty-six million, one hundred thirteen thousand, six hundred sixteen".