690351703838 has 16 divisors (see below), whose sum is σ = 1110595594320. Its totient is φ = 320838725376.

The previous prime is 690351703837. The next prime is 690351703907. The reversal of 690351703838 is 838307153096.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a self number, because there is not a number n which added to its sum of digits gives 690351703838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690351703837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171386195 + ... + 171390222.

It is an arithmetic number, because the mean of its divisors is an integer number (69412224645).

Almost surely, 2^690351703838 is an apocalyptic number.

690351703838 is a deficient number, since it is larger than the sum of its proper divisors (420243890482).

690351703838 is a wasteful number, since it uses less digits than its factorization.

690351703838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342776491.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 690351703838 in words is "six hundred ninety billion, three hundred fifty-one million, seven hundred three thousand, eight hundred thirty-eight".