77374334442640 has 40 divisors (see below), whose sum is σ = 180972545140800. Its totient is φ = 30764406024576.

The previous prime is 77374334442619. The next prime is 77374334442751. The reversal of 77374334442640 is 4624443347377.

77374334442640 is digitally balanced in base 3 and base 6, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

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, 2895732690 + ... + 2895759409.

It is an arithmetic number, because the mean of its divisors is an integer number (4524313628520).

Almost surely, 2^{77374334442640} is an apocalyptic number.

It is an amenable number.

77374334442640 is an abundant number, since it is smaller than the sum of its proper divisors (103598210698160).

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

77374334442640 is a wasteful number, since it uses less digits than its factorization.

77374334442640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5791492279 (or 5791492273 counting only the distinct ones).

The product of its (nonzero) digits is 113799168, while the sum is 58.

The spelling of 77374334442640 in words is "seventy-seven trillion, three hundred seventy-four billion, three hundred thirty-four million, four hundred forty-two thousand, six hundred forty".