690603844081 has 8 divisors (see below), whose sum is σ = 695602177760. Its totient is φ = 685605938688.

The previous prime is 690603843991. The next prime is 690603844141. The reversal of 690603844081 is 180448306096.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 690603844081 - 2²⁵ = 690570289649 is a prime.

It is a super-2 number, since 2×690603844081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (690603844181) 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, 3589330 + ... + 3776836.

It is an arithmetic number, because the mean of its divisors is an integer number (86950272220).

Almost surely, 2^690603844081 is an apocalyptic number.

It is an amenable number.

690603844081 is a deficient number, since it is larger than the sum of its proper divisors (4998333679).

690603844081 is a wasteful number, since it uses less digits than its factorization.

690603844081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214143.

The product of its (nonzero) digits is 995328, while the sum is 49.

The spelling of 690603844081 in words is "six hundred ninety billion, six hundred three million, eight hundred forty-four thousand, eighty-one".