774540358645908 has 12 divisors (see below), whose sum is σ = 1807260836840480. Its totient is φ = 258180119548632.

The previous prime is 774540358645861. The next prime is 774540358645951. The reversal of 774540358645908 is 809546853045477.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 774540358645908.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32272514943568 + ... + 32272514943591.

Almost surely, 2^{774540358645908} is an apocalyptic number.

It is an amenable number.

774540358645908 is an abundant number, since it is smaller than the sum of its proper divisors (1032720478194572).

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

774540358645908 is a wasteful number, since it uses less digits than its factorization.

774540358645908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64545029887166 (or 64545029887164 counting only the distinct ones).

The product of its (nonzero) digits is 4064256000, while the sum is 75.

The spelling of 774540358645908 in words is "seven hundred seventy-four trillion, five hundred forty billion, three hundred fifty-eight million, six hundred forty-five thousand, nine hundred eight".