78617422869952 has 56 divisors (see below), whose sum is σ = 156050456170752. Its totient is φ = 39297624960000.

The previous prime is 78617422869941. The next prime is 78617422869967. The reversal of 78617422869952 is 25996822471687.

It is a congruent number.

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, 6496764702 + ... + 6496776802.

Almost surely, 2^{78617422869952} is an apocalyptic number.

It is an amenable number.

78617422869952 is a deficient number, since it is larger than the sum of its proper divisors (77433033300800).

78617422869952 is a wasteful number, since it uses less digits than its factorization.

78617422869952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32357 (or 32347 counting only the distinct ones).

The product of its digits is 1463132160, while the sum is 76.

The spelling of 78617422869952 in words is "seventy-eight trillion, six hundred seventeen billion, four hundred twenty-two million, eight hundred sixty-nine thousand, nine hundred fifty-two".