345210689690 has 16 divisors (see below), whose sum is σ = 630131063040. Its totient is φ = 136139426640.

The previous prime is 345210689687. The next prime is 345210689851. The reversal of 345210689690 is 96986012543.

It is a super-2 number, since 2×345210689690² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243105410 + ... + 243106829.

It is an arithmetic number, because the mean of its divisors is an integer number (39383191440).

Almost surely, 2^345210689690 is an apocalyptic number.

345210689690 is a deficient number, since it is larger than the sum of its proper divisors (284920373350).

345210689690 is a wasteful number, since it uses less digits than its factorization.

345210689690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486212317.

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 345210689690 in words is "three hundred forty-five billion, two hundred ten million, six hundred eighty-nine thousand, six hundred ninety".