8871612272640 has 1456 divisors, whose sum is σ = 35207134419072. Its totient is φ = 2130989285376.

The previous prime is 8871612272639. The next prime is 8871612272641. The reversal of 8871612272640 is 462722161788.

It is an interprime number because it is at equal distance from previous prime (8871612272639) and next prime (8871612272641).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8871612272641) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 8345824749 + ... + 8345825811.

Almost surely, 2^{8871612272640} is an apocalyptic number.

8871612272640 is a gapful number since it is divisible by the number (80) 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 8871612272640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17603567209536).

8871612272640 is an abundant number, since it is smaller than the sum of its proper divisors (26335522146432).

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

8871612272640 is a wasteful number, since it uses less digits than its factorization.

8871612272640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166 (or 1129 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 54.

The spelling of 8871612272640 in words is "eight trillion, eight hundred seventy-one billion, six hundred twelve million, two hundred seventy-two thousand, six hundred forty".