88140939264 has 380 divisors, whose sum is σ = 301460830704. Its totient is φ = 25140658176.

The previous prime is 88140939191. The next prime is 88140939301. The reversal of 88140939264 is 46293904188.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 88140939264.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 148635352 + ... + 148635944.

Almost surely, 2^88140939264 is an apocalyptic number.

88140939264 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88140939264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150730415352).

88140939264 is an abundant number, since it is smaller than the sum of its proper divisors (213319891440).

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

88140939264 is an frugal number, since it uses more digits than its factorization.

88140939264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648 (or 605 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 88140939264 in words is "eighty-eight billion, one hundred forty million, nine hundred thirty-nine thousand, two hundred sixty-four".