76620676728 has 32 divisors (see below), whose sum is σ = 191561852160. Its totient is φ = 25538870880.

The previous prime is 76620676721. The next prime is 76620676747. The reversal of 76620676728 is 82767602667.

It is a super-4 number, since 4×76620676728⁴ (a number of 45 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76620676721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444801 + ... + 592527.

It is an arithmetic number, because the mean of its divisors is an integer number (5986307880).

Almost surely, 2^76620676728 is an apocalyptic number.

It is an amenable number.

76620676728 is an abundant number, since it is smaller than the sum of its proper divisors (114941175432).

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

76620676728 is a wasteful number, since it uses less digits than its factorization.

76620676728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169347 (or 169343 counting only the distinct ones).

The product of its (nonzero) digits is 14224896, while the sum is 57.

The spelling of 76620676728 in words is "seventy-six billion, six hundred twenty million, six hundred seventy-six thousand, seven hundred twenty-eight".