1078656517378 has 16 divisors (see below), whose sum is σ = 1765123835904. Its totient is φ = 490284657360.

The previous prime is 1078656517319. The next prime is 1078656517391. The reversal of 1078656517378 is 8737156568701.

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, 135676 + ... + 1475032.

It is an arithmetic number, because the mean of its divisors is an integer number (110320239744).

Almost surely, 2^{1078656517378} is an apocalyptic number.

1078656517378 is a deficient number, since it is larger than the sum of its proper divisors (686467318526).

1078656517378 is a wasteful number, since it uses less digits than its factorization.

1078656517378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375977.

The product of its (nonzero) digits is 59270400, while the sum is 64.

The spelling of 1078656517378 in words is "one trillion, seventy-eight billion, six hundred fifty-six million, five hundred seventeen thousand, three hundred seventy-eight".