77732912348 has 24 divisors (see below), whose sum is σ = 167424735072. Its totient is φ = 30751481664.

The previous prime is 77732912339. The next prime is 77732912353. The reversal of 77732912348 is 84321923777.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 77732912348.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106775615 + ... + 106776342.

It is an arithmetic number, because the mean of its divisors is an integer number (6976030628).

Almost surely, 2^77732912348 is an apocalyptic number.

It is an amenable number.

77732912348 is an abundant number, since it is smaller than the sum of its proper divisors (89691822724).

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

77732912348 is a wasteful number, since it uses less digits than its factorization.

77732912348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213551981 (or 213551979 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 53.

The spelling of 77732912348 in words is "seventy-seven billion, seven hundred thirty-two million, nine hundred twelve thousand, three hundred forty-eight".