71386777265378 has 16 divisors (see below), whose sum is σ = 108890811803520. Its totient is φ = 35092640688000.

The previous prime is 71386777265347. The next prime is 71386777265383. The reversal of 71386777265378 is 87356277768317.

It is a junction number, because it is equal to n+sod(n) for n = 71386777265299 and 71386777265308.

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 7 ways as a sum of consecutive naturals, for example, 700121423 + ... + 700223378.

It is an arithmetic number, because the mean of its divisors is an integer number (6805675737720).

Almost surely, 2^{71386777265378} is an apocalyptic number.

71386777265378 is a deficient number, since it is larger than the sum of its proper divisors (37504034538142).

71386777265378 is a wasteful number, since it uses less digits than its factorization.

71386777265378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400345233.

The product of its digits is 3485099520, while the sum is 77.

The spelling of 71386777265378 in words is "seventy-one trillion, three hundred eighty-six billion, seven hundred seventy-seven million, two hundred sixty-five thousand, three hundred seventy-eight".