76988477188 has 18 divisors (see below), whose sum is σ = 156726543246. Its totient is φ = 32995061568.

The previous prime is 76988477131. The next prime is 76988477191. The reversal of 76988477188 is 88177488967.

It can be written as a sum of positive squares in only one way, i.e., 58444029504 + 18544447684 = 241752^2 + 136178^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 76988477188.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 196398981 + ... + 196399372.

Almost surely, 2^76988477188 is an apocalyptic number.

It is an amenable number.

76988477188 is an abundant number, since it is smaller than the sum of its proper divisors (79738066058).

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

76988477188 is a wasteful number, since it uses less digits than its factorization.

76988477188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392798371 (or 392798362 counting only the distinct ones).

The product of its digits is 303464448, while the sum is 73.

The spelling of 76988477188 in words is "seventy-six billion, nine hundred eighty-eight million, four hundred seventy-seven thousand, one hundred eighty-eight".