77370734772 has 108 divisors (see below), whose sum is σ = 201813914848. Its totient is φ = 24991632000.

The previous prime is 77370734737. The next prime is 77370734797. The reversal of 77370734772 is 27743707377.

77370734772 is a `hidden beast` number, since 77 + 37 + 0 + 73 + 477 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9133683 + ... + 9142149.

Almost surely, 2^77370734772 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 77370734772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100906957424).

77370734772 is an abundant number, since it is smaller than the sum of its proper divisors (124443180076).

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

77370734772 is a wasteful number, since it uses less digits than its factorization.

77370734772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8710 (or 8664 counting only the distinct ones).

The product of its (nonzero) digits is 8470728, while the sum is 54.

The spelling of 77370734772 in words is "seventy-seven billion, three hundred seventy million, seven hundred thirty-four thousand, seven hundred seventy-two".