345683386542 has 16 divisors (see below), whose sum is σ = 744548832720. Its totient is φ = 106364118912.

The previous prime is 345683386523. The next prime is 345683386583. The reversal of 345683386542 is 245683386543.

It is a happy number.

It is a super-2 number, since 2×345683386542² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2215919067 + ... + 2215919222.

It is an arithmetic number, because the mean of its divisors is an integer number (46534302045).

Almost surely, 2^345683386542 is an apocalyptic number.

345683386542 is an abundant number, since it is smaller than the sum of its proper divisors (398865446178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345683386542 is a wasteful number, since it uses less digits than its factorization.

345683386542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4431838307.

The product of its digits is 49766400, while the sum is 57.

Subtracting from 345683386542 its reverse (245683386543), we obtain a palindrome (99999999999).

The spelling of 345683386542 in words is "three hundred forty-five billion, six hundred eighty-three million, three hundred eighty-six thousand, five hundred forty-two".