10356128639 has 4 divisors (see below), whose sum is σ = 10389428400. Its totient is φ = 10322828880.

The previous prime is 10356128621. The next prime is 10356128647. The reversal of 10356128639 is 93682165301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10356128639 - 2¹⁶ = 10356063103 is a prime.

It is a super-3 number, since 3×10356128639³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10356128639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10356128689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16649414 + ... + 16650035.

It is an arithmetic number, because the mean of its divisors is an integer number (2597357100).

Almost surely, 2^10356128639 is an apocalyptic number.

10356128639 is a deficient number, since it is larger than the sum of its proper divisors (33299761).

10356128639 is an equidigital number, since it uses as much as digits as its factorization.

10356128639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33299760.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 10356128639 in words is "ten billion, three hundred fifty-six million, one hundred twenty-eight thousand, six hundred thirty-nine".