78881403465073 has 64 divisors (see below), whose sum is σ = 92132331033600. Its totient is φ = 66740668968960.

The previous prime is 78881403465071. The next prime is 78881403465119. The reversal of 78881403465073 is 37056430418887.

It is a cyclic number.

It is not a de Polignac number, because 78881403465073 - 2¹ = 78881403465071 is a prime.

It is a super-2 number, since 2×78881403465073² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78881403464996 and 78881403465014.

It is not an unprimeable number, because it can be changed into a prime (78881403465071) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 38422504315 + ... + 38422506367.

It is an arithmetic number, because the mean of its divisors is an integer number (1439567672400).

Almost surely, 2^{78881403465073} is an apocalyptic number.

It is an amenable number.

78881403465073 is a deficient number, since it is larger than the sum of its proper divisors (13250927568527).

78881403465073 is a wasteful number, since it uses less digits than its factorization.

78881403465073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5002.

The product of its (nonzero) digits is 108380160, while the sum is 64.

The spelling of 78881403465073 in words is "seventy-eight trillion, eight hundred eighty-one billion, four hundred three million, four hundred sixty-five thousand, seventy-three".