78498038765548 has 6 divisors (see below), whose sum is σ = 137371567839716. Its totient is φ = 39249019382772.

The previous prime is 78498038765543. The next prime is 78498038765561. The reversal of 78498038765548 is 84556783089487.

It is not an unprimeable number, because it can be changed into a prime (78498038765543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9812254845690 + ... + 9812254845697.

Almost surely, 2^{78498038765548} is an apocalyptic number.

It is an amenable number.

78498038765548 is a deficient number, since it is larger than the sum of its proper divisors (58873529074168).

78498038765548 is a wasteful number, since it uses less digits than its factorization.

78498038765548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19624509691391 (or 19624509691389 counting only the distinct ones).

The product of its (nonzero) digits is 13005619200, while the sum is 82.

The spelling of 78498038765548 in words is "seventy-eight trillion, four hundred ninety-eight billion, thirty-eight million, seven hundred sixty-five thousand, five hundred forty-eight".