97764071424 has 72 divisors (see below), whose sum is σ = 260705898180. Its totient is φ = 32579854336.

The previous prime is 97764071357. The next prime is 97764071429. The reversal of 97764071424 is 42417046779.

It is a super-2 number, since 2×97764071424² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97764071429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24506422 + ... + 24510410.

Almost surely, 2^97764071424 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 97764071424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130352949090).

97764071424 is an abundant number, since it is smaller than the sum of its proper divisors (162941826756).

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

97764071424 is an frugal number, since it uses more digits than its factorization.

97764071424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8003 (or 3994 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 51.

The spelling of 97764071424 in words is "ninety-seven billion, seven hundred sixty-four million, seventy-one thousand, four hundred twenty-four".