210539299652 has 48 divisors (see below), whose sum is σ = 407032523520. Its totient is φ = 95281227360.

The previous prime is 210539299651. The next prime is 210539299661. The reversal of 210539299652 is 256992935012.

It is a super-2 number, since 2×210539299652² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210539299594 and 210539299603.

It is not an unprimeable number, because it can be changed into a prime (210539299651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1132853 + ... + 1305539.

It is an arithmetic number, because the mean of its divisors is an integer number (8479844240).

Almost surely, 2^210539299652 is an apocalyptic number.

210539299652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

210539299652 is a deficient number, since it is larger than the sum of its proper divisors (196493223868).

210539299652 is a wasteful number, since it uses less digits than its factorization.

210539299652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172953 (or 172929 counting only the distinct ones).

The product of its (nonzero) digits is 2624400, while the sum is 53.

The spelling of 210539299652 in words is "two hundred ten billion, five hundred thirty-nine million, two hundred ninety-nine thousand, six hundred fifty-two".