997641847882 has 16 divisors (see below), whose sum is σ = 1617797593440. Its totient is φ = 459795104208.

The previous prime is 997641847879. The next prime is 997641847907. The reversal of 997641847882 is 288748146799.

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, 354778768 + ... + 354781579.

It is an arithmetic number, because the mean of its divisors is an integer number (101112349590).

Almost surely, 2^997641847882 is an apocalyptic number.

997641847882 is a deficient number, since it is larger than the sum of its proper divisors (620155745558).

997641847882 is a wasteful number, since it uses less digits than its factorization.

997641847882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709560405.

The product of its digits is 390168576, while the sum is 73.

The spelling of 997641847882 in words is "nine hundred ninety-seven billion, six hundred forty-one million, eight hundred forty-seven thousand, eight hundred eighty-two".