88537486640 has 20 divisors (see below), whose sum is σ = 205849656624. Its totient is φ = 35414994624.

The previous prime is 88537486637. The next prime is 88537486663. The reversal of 88537486640 is 4668473588.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 88537486640.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553359212 + ... + 553359371.

Almost surely, 2^88537486640 is an apocalyptic number.

88537486640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

88537486640 is an abundant number, since it is smaller than the sum of its proper divisors (117312169984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

88537486640 is a wasteful number, since it uses less digits than its factorization.

88537486640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106718596 (or 1106718590 counting only the distinct ones).

The product of its (nonzero) digits is 30965760, while the sum is 59.

The spelling of 88537486640 in words is "eighty-eight billion, five hundred thirty-seven million, four hundred eighty-six thousand, six hundred forty".