88218445497 has 16 divisors (see below), whose sum is σ = 144768731520. Its totient is φ = 46532806272.

The previous prime is 88218445493. The next prime is 88218445537. The reversal of 88218445497 is 79454481288.

It is not a de Polignac number, because 88218445497 - 2² = 88218445493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 88218445497.

It is not an unprimeable number, because it can be changed into a prime (88218445493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161571972 + ... + 161572517.

It is an arithmetic number, because the mean of its divisors is an integer number (9048045720).

Almost surely, 2^88218445497 is an apocalyptic number.

It is an amenable number.

88218445497 is a deficient number, since it is larger than the sum of its proper divisors (56550286023).

88218445497 is a wasteful number, since it uses less digits than its factorization.

88218445497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323144512.

The product of its digits is 20643840, while the sum is 60.

The spelling of 88218445497 in words is "eighty-eight billion, two hundred eighteen million, four hundred forty-five thousand, four hundred ninety-seven".