76232171520 has 896 divisors, whose sum is σ = 294044705280. Its totient is φ = 18919194624.

The previous prime is 76232171489. The next prime is 76232171611. The reversal of 76232171520 is 2517123267.

76232171520 is a `hidden beast` number, since 7 + 62 + 3 + 2 + 1 + 71 + 520 = 666.

It is a super-2 number, since 2×76232171520² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2060328942 + ... + 2060328978.

Almost surely, 2^76232171520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76232171520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147022352640).

76232171520 is an abundant number, since it is smaller than the sum of its proper divisors (217812533760).

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

76232171520 is an frugal number, since it uses more digits than its factorization.

76232171520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

Adding to 76232171520 its reverse (2517123267), we get a palindrome (78749294787).

The spelling of 76232171520 in words is "seventy-six billion, two hundred thirty-two million, one hundred seventy-one thousand, five hundred twenty".