690540541900 has 36 divisors (see below), whose sum is σ = 1634697794520. Its totient is φ = 251105651200.

The previous prime is 690540541891. The next prime is 690540541919. The reversal of 690540541900 is 9145045096.

It is a super-3 number, since 3×690540541900³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 313880965 + ... + 313883164.

It is an arithmetic number, because the mean of its divisors is an integer number (45408272070).

Almost surely, 2^690540541900 is an apocalyptic number.

It is an amenable number.

690540541900 is an abundant number, since it is smaller than the sum of its proper divisors (944157252620).

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

690540541900 is a wasteful number, since it uses less digits than its factorization.

690540541900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627764154 (or 627764147 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 43.

Adding to 690540541900 its reverse (9145045096), we get a palindrome (699685586996).

The spelling of 690540541900 in words is "six hundred ninety billion, five hundred forty million, five hundred forty-one thousand, nine hundred".