773738381378 has 16 divisors (see below), whose sum is σ = 1257457180320. Its totient is φ = 355644453696.

The previous prime is 773738381363. The next prime is 773738381387. The reversal of 773738381378 is 873183837377.

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, 264614948 + ... + 264617871.

It is an arithmetic number, because the mean of its divisors is an integer number (78591073770).

Almost surely, 2^773738381378 is an apocalyptic number.

773738381378 is a deficient number, since it is larger than the sum of its proper divisors (483718798942).

773738381378 is a wasteful number, since it uses less digits than its factorization.

773738381378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529232881.

The product of its digits is 99574272, while the sum is 65.

The spelling of 773738381378 in words is "seven hundred seventy-three billion, seven hundred thirty-eight million, three hundred eighty-one thousand, three hundred seventy-eight".