10639048965 has 16 divisors (see below), whose sum is σ = 17030141568. Its totient is φ = 5671605056.

The previous prime is 10639048961. The next prime is 10639048967. The reversal of 10639048965 is 56984093601.

It is a cyclic number.

It is not a de Polignac number, because 10639048965 - 2² = 10639048961 is a prime.

It is a super-2 number, since 2×10639048965² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10639048961) 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, 124977 + ... + 192086.

It is an arithmetic number, because the mean of its divisors is an integer number (1064383848).

Almost surely, 2^10639048965 is an apocalyptic number.

10639048965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10639048965 is a deficient number, since it is larger than the sum of its proper divisors (6391092603).

10639048965 is a wasteful number, since it uses less digits than its factorization.

10639048965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319308.

The product of its (nonzero) digits is 1399680, while the sum is 51.

The spelling of 10639048965 in words is "ten billion, six hundred thirty-nine million, forty-eight thousand, nine hundred sixty-five".