97439543736 has 16 divisors (see below), whose sum is σ = 243598859400. Its totient is φ = 32479847904.

The previous prime is 97439543699. The next prime is 97439543753. The reversal of 97439543736 is 63734593479.

It is a self number, because there is not a number n which added to its sum of digits gives 97439543736.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2029990471 + ... + 2029990518.

Almost surely, 2^97439543736 is an apocalyptic number.

It is an amenable number.

97439543736 is an abundant number, since it is smaller than the sum of its proper divisors (146159315664).

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

97439543736 is a wasteful number, since it uses less digits than its factorization.

97439543736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4059980998 (or 4059980994 counting only the distinct ones).

The product of its digits is 51438240, while the sum is 60.

The spelling of 97439543736 in words is "ninety-seven billion, four hundred thirty-nine million, five hundred forty-three thousand, seven hundred thirty-six".