10399209751 has 32 divisors (see below), whose sum is σ = 12883228160. Its totient is φ = 8194006656.

The previous prime is 10399209721. The next prime is 10399209781. The reversal of 10399209751 is 15790299301.

It is an interprime number because it is at equal distance from previous prime (10399209721) and next prime (10399209781).

It is a cyclic number.

It is not a de Polignac number, because 10399209751 - 2¹⁹ = 10398685463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10399209721) 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, 1950976 + ... + 1956298.

It is an arithmetic number, because the mean of its divisors is an integer number (402600880).

Almost surely, 2^10399209751 is an apocalyptic number.

10399209751 is a deficient number, since it is larger than the sum of its proper divisors (2484018409).

10399209751 is a wasteful number, since it uses less digits than its factorization.

10399209751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5783.

The product of its (nonzero) digits is 153090, while the sum is 46.

The spelling of 10399209751 in words is "ten billion, three hundred ninety-nine million, two hundred nine thousand, seven hundred fifty-one".