10209921375 has 32 divisors (see below), whose sum is σ = 17727989760. Its totient is φ = 5208535200.

The previous prime is 10209921373. The next prime is 10209921391. The reversal of 10209921375 is 57312990201.

It is not a de Polignac number, because 10209921375 - 2¹ = 10209921373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10209921373) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 583255 + ... + 600504.

It is an arithmetic number, because the mean of its divisors is an integer number (553999680).

Almost surely, 2^10209921375 is an apocalyptic number.

10209921375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10209921375 is a deficient number, since it is larger than the sum of its proper divisors (7518068385).

10209921375 is a wasteful number, since it uses less digits than its factorization.

10209921375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183800 (or 1183790 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 39.

The spelling of 10209921375 in words is "ten billion, two hundred nine million, nine hundred twenty-one thousand, three hundred seventy-five".