87263273280 has 224 divisors, whose sum is σ = 290735308800. Its totient is φ = 22133106688.

The previous prime is 87263273261. The next prime is 87263273299. The reversal of 87263273280 is 8237236278.

It is an interprime number because it is at equal distance from previous prime (87263273261) and next prime (87263273299).

It is a super-2 number, since 2×87263273280² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3941281 + ... + 3963359.

Almost surely, 2^87263273280 is an apocalyptic number.

87263273280 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 87263273280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145367654400).

87263273280 is an abundant number, since it is smaller than the sum of its proper divisors (203472035520).

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

87263273280 is a wasteful number, since it uses less digits than its factorization.

87263273280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22301 (or 22291 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 87263273280 in words is "eighty-seven billion, two hundred sixty-three million, two hundred seventy-three thousand, two hundred eighty".