77374959385 has 8 divisors (see below), whose sum is σ = 92932198920. Its totient is φ = 61845135744.

The previous prime is 77374959367. The next prime is 77374959419. The reversal of 77374959385 is 58395947377.

It can be written as a sum of positive squares in 4 ways, for example, as 7033841424 + 70341117961 = 83868^2 + 265219^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77374959385 - 2⁷ = 77374959257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77374959385.

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, 6847762 + ... + 6859051.

It is an arithmetic number, because the mean of its divisors is an integer number (11616524865).

Almost surely, 2^77374959385 is an apocalyptic number.

It is an amenable number.

77374959385 is a deficient number, since it is larger than the sum of its proper divisors (15557239535).

77374959385 is a wasteful number, since it uses less digits than its factorization.

77374959385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13707947.

The product of its digits is 200037600, while the sum is 67.

The spelling of 77374959385 in words is "seventy-seven billion, three hundred seventy-four million, nine hundred fifty-nine thousand, three hundred eighty-five".