78148676857803 has 16 divisors (see below), whose sum is σ = 105120801561600. Its totient is φ = 51637839042944.

The previous prime is 78148676857723. The next prime is 78148676857807. The reversal of 78148676857803 is 30875867684187.

It is a cyclic number.

It is not a de Polignac number, because 78148676857803 - 2⁹ = 78148676857291 is a prime.

It is a super-2 number, since 2×78148676857803² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78148676857807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120495850 + ... + 121142672.

It is an arithmetic number, because the mean of its divisors is an integer number (6570050097600).

Almost surely, 2^{78148676857803} is an apocalyptic number.

78148676857803 is a deficient number, since it is larger than the sum of its proper divisors (26972124703797).

78148676857803 is a wasteful number, since it uses less digits than its factorization.

78148676857803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003338.

The product of its (nonzero) digits is 3034644480, while the sum is 78.

The spelling of 78148676857803 in words is "seventy-eight trillion, one hundred forty-eight billion, six hundred seventy-six million, eight hundred fifty-seven thousand, eight hundred three".