78880415453 has 12 divisors (see below), whose sum is σ = 91830666240. Its totient is φ = 67558867992.

The previous prime is 78880415441. The next prime is 78880415473. The reversal of 78880415453 is 35451408887.

It is not a de Polignac number, because 78880415453 - 2⁴ = 78880415437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78880415395 and 78880415404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78880415413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 566651 + ... + 691992.

It is an arithmetic number, because the mean of its divisors is an integer number (7652555520).

Almost surely, 2^78880415453 is an apocalyptic number.

It is an amenable number.

78880415453 is a deficient number, since it is larger than the sum of its proper divisors (12950250787).

78880415453 is a wasteful number, since it uses less digits than its factorization.

78880415453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259936 (or 1259929 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 53.

The spelling of 78880415453 in words is "seventy-eight billion, eight hundred eighty million, four hundred fifteen thousand, four hundred fifty-three".