97888129278 has 16 divisors (see below), whose sum is σ = 195878943360. Its totient is φ = 32612262296.

The previous prime is 97888129247. The next prime is 97888129327. The reversal of 97888129278 is 87292188879.

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, 4266138 + ... + 4289021.

It is an arithmetic number, because the mean of its divisors is an integer number (12242433960).

Almost surely, 2^97888129278 is an apocalyptic number.

97888129278 is an abundant number, since it is smaller than the sum of its proper divisors (97990814082).

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

97888129278 is a wasteful number, since it uses less digits than its factorization.

97888129278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8557071.

The product of its digits is 65028096, while the sum is 69.

The spelling of 97888129278 in words is "ninety-seven billion, eight hundred eighty-eight million, one hundred twenty-nine thousand, two hundred seventy-eight".