97447897536 has 56 divisors (see below), whose sum is σ = 281270073984. Its totient is φ = 29529665280.

The previous prime is 97447897517. The next prime is 97447897543. The reversal of 97447897536 is 63579874479.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23067940 + ... + 23072163.

Almost surely, 2^97447897536 is an apocalyptic number.

97447897536 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

97447897536 is an abundant number, since it is smaller than the sum of its proper divisors (183822176448).

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

97447897536 is a wasteful number, since it uses less digits than its factorization.

97447897536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46140129 (or 46140119 counting only the distinct ones).

The product of its digits is 320060160, while the sum is 69.

The spelling of 97447897536 in words is "ninety-seven billion, four hundred forty-seven million, eight hundred ninety-seven thousand, five hundred thirty-six".