74387517696 has 216 divisors, whose sum is σ = 227601934560. Its totient is φ = 24218320896.

The previous prime is 74387517691. The next prime is 74387517697. The reversal of 74387517696 is 69671578347.

It is a tau number, because it is divible by the number of its divisors (216).

It is not an unprimeable number, because it can be changed into a prime (74387517691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2661040 + ... + 2688848.

It is an arithmetic number, because the mean of its divisors is an integer number (1053712660).

Almost surely, 2^74387517696 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 74387517696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113800967280).

74387517696 is an abundant number, since it is smaller than the sum of its proper divisors (153214416864).

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

74387517696 is an equidigital number, since it uses as much as digits as its factorization.

74387517696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27883 (or 27857 counting only the distinct ones).

The product of its digits is 53343360, while the sum is 63.

It can be divided in two parts, 7438751 and 7696, that added together give a palindrome (7446447).

The spelling of 74387517696 in words is "seventy-four billion, three hundred eighty-seven million, five hundred seventeen thousand, six hundred ninety-six".