97889510642 has 64 divisors (see below), whose sum is σ = 185837027328. Its totient is φ = 37562616000.

The previous prime is 97889510567. The next prime is 97889510669. The reversal of 97889510642 is 24601598879.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11946767 + ... + 11954957.

It is an arithmetic number, because the mean of its divisors is an integer number (2903703552).

Almost surely, 2^97889510642 is an apocalyptic number.

97889510642 is a deficient number, since it is larger than the sum of its proper divisors (87947516686).

97889510642 is a wasteful number, since it uses less digits than its factorization.

97889510642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9375.

The product of its (nonzero) digits is 8709120, while the sum is 59.

The spelling of 97889510642 in words is "ninety-seven billion, eight hundred eighty-nine million, five hundred ten thousand, six hundred forty-two".