97687488920144 has 40 divisors (see below), whose sum is σ = 192591757630272. Its totient is φ = 47991478337280.

The previous prime is 97687488920143. The next prime is 97687488920179. The reversal of 97687488920144 is 44102988478679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97687488920141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158697662 + ... + 159312029.

Almost surely, 2^{97687488920144} is an apocalyptic number.

It is an amenable number.

97687488920144 is a deficient number, since it is larger than the sum of its proper divisors (94904268710128).

97687488920144 is a wasteful number, since it uses less digits than its factorization.

97687488920144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318010035 (or 318010029 counting only the distinct ones).

The product of its (nonzero) digits is 1560674304, while the sum is 77.

The spelling of 97687488920144 in words is "ninety-seven trillion, six hundred eighty-seven billion, four hundred eighty-eight million, nine hundred twenty thousand, one hundred forty-four".