77786337221032 has 64 divisors (see below), whose sum is σ = 166266446722560. Its totient is φ = 33771202238400.

The previous prime is 77786337221003. The next prime is 77786337221039. The reversal of 77786337221032 is 23012273368777.

It is not an unprimeable number, because it can be changed into a prime (77786337221039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26410378 + ... + 29207545.

It is an arithmetic number, because the mean of its divisors is an integer number (2597913230040).

Almost surely, 2^{77786337221032} is an apocalyptic number.

It is an amenable number.

77786337221032 is an abundant number, since it is smaller than the sum of its proper divisors (88480109501528).

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

77786337221032 is a wasteful number, since it uses less digits than its factorization.

77786337221032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55618654 (or 55618650 counting only the distinct ones).

The product of its (nonzero) digits is 24893568, while the sum is 58.

The spelling of 77786337221032 in words is "seventy-seven trillion, seven hundred eighty-six billion, three hundred thirty-seven million, two hundred twenty-one thousand, thirty-two".