78802208437573 has 4 divisors (see below), whose sum is σ = 78803578896768. Its totient is φ = 78800837978380.

The previous prime is 78802208437567. The next prime is 78802208437639. The reversal of 78802208437573 is 37573480220887.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78802208437573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78802208432573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 685143343 + ... + 685258348.

It is an arithmetic number, because the mean of its divisors is an integer number (19700894724192).

Almost surely, 2^{78802208437573} is an apocalyptic number.

It is an amenable number.

78802208437573 is a deficient number, since it is larger than the sum of its proper divisors (1370459195).

78802208437573 is a wasteful number, since it uses less digits than its factorization.

78802208437573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370459194.

The product of its (nonzero) digits is 126443520, while the sum is 64.

The spelling of 78802208437573 in words is "seventy-eight trillion, eight hundred two billion, two hundred eight million, four hundred thirty-seven thousand, five hundred seventy-three".