88424140581 has 24 divisors (see below), whose sum is σ = 147969606720. Its totient is φ = 49835912256.

The previous prime is 88424140579. The next prime is 88424140591. The reversal of 88424140581 is 18504142488.

88424140581 is a `hidden beast` number, since 8 + 8 + 4 + 24 + 1 + 40 + 581 = 666.

It is not a de Polignac number, because 88424140581 - 2¹ = 88424140579 is a prime.

It is a super-2 number, since 2×88424140581² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88424140591) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9608811 + ... + 9618008.

It is an arithmetic number, because the mean of its divisors is an integer number (6165400280).

Almost surely, 2^88424140581 is an apocalyptic number.

It is an amenable number.

88424140581 is a deficient number, since it is larger than the sum of its proper divisors (59545466139).

88424140581 is a wasteful number, since it uses less digits than its factorization.

88424140581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19226905 (or 19226902 counting only the distinct ones).

The product of its (nonzero) digits is 327680, while the sum is 45.

The spelling of 88424140581 in words is "eighty-eight billion, four hundred twenty-four million, one hundred forty thousand, five hundred eighty-one".