78353118883 has 4 divisors (see below), whose sum is σ = 84380281888. Its totient is φ = 72325955880.

The previous prime is 78353118863. The next prime is 78353118971. The reversal of 78353118883 is 38881135387.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38881135387 = 17 ⋅2287125611.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78353118883 is a prime.

It is a super-2 number, since 2×78353118883² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78353118803) 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, 3013581483 + ... + 3013581508.

It is an arithmetic number, because the mean of its divisors is an integer number (21095070472).

Almost surely, 2^78353118883 is an apocalyptic number.

78353118883 is a deficient number, since it is larger than the sum of its proper divisors (6027163005).

78353118883 is a wasteful number, since it uses less digits than its factorization.

78353118883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6027163004.

The product of its digits is 3870720, while the sum is 55.

The spelling of 78353118883 in words is "seventy-eight billion, three hundred fifty-three million, one hundred eighteen thousand, eight hundred eighty-three".