78353111135387 has 16 divisors (see below), whose sum is σ = 87562562873184. Its totient is φ = 69491465472000.

The previous prime is 78353111135303. The next prime is 78353111135413.

78353111135387 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 78353111135387 - 2¹² = 78353111131291 is a prime.

It is a super-2 number, since 2×78353111135387² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78353111135087) 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, 22591943 + ... + 25828319.

It is an arithmetic number, because the mean of its divisors is an integer number (5472660179574).

Almost surely, 2^{78353111135387} is an apocalyptic number.

78353111135387 is a deficient number, since it is larger than the sum of its proper divisors (9209451737797).

78353111135387 is a wasteful number, since it uses less digits than its factorization.

78353111135387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3290110.

The product of its digits is 6350400, while the sum is 56.

The spelling of 78353111135387 in words is "seventy-eight trillion, three hundred fifty-three billion, one hundred eleven million, one hundred thirty-five thousand, three hundred eighty-seven".