88197608521 has 4 divisors (see below), whose sum is σ = 96215572944. Its totient is φ = 80179644100.

The previous prime is 88197608479. The next prime is 88197608647. The reversal of 88197608521 is 12580679188.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 88197608521 - 2¹¹ = 88197606473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88197608021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4008982195 + ... + 4008982216.

It is an arithmetic number, because the mean of its divisors is an integer number (24053893236).

Almost surely, 2^88197608521 is an apocalyptic number.

It is an amenable number.

88197608521 is a deficient number, since it is larger than the sum of its proper divisors (8017964423).

88197608521 is a wasteful number, since it uses less digits than its factorization.

88197608521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8017964422.

The product of its (nonzero) digits is 1935360, while the sum is 55.

The spelling of 88197608521 in words is "eighty-eight billion, one hundred ninety-seven million, six hundred eight thousand, five hundred twenty-one".