10259606781 has 12 divisors (see below), whose sum is σ = 14902224480. Its totient is φ = 6801525960.

The previous prime is 10259606761. The next prime is 10259606783. The reversal of 10259606781 is 18760695201.

10259606781 is a `hidden beast` number, since 10 + 25 + 9 + 606 + 7 + 8 + 1 = 666.

It is not a de Polignac number, because 10259606781 - 2²¹ = 10257509629 is a prime.

It is a super-2 number, since 2×10259606781² (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 (10259606783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3182625 + ... + 3185846.

It is an arithmetic number, because the mean of its divisors is an integer number (1241852040).

Almost surely, 2^10259606781 is an apocalyptic number.

It is an amenable number.

10259606781 is a deficient number, since it is larger than the sum of its proper divisors (4642617699).

10259606781 is a wasteful number, since it uses less digits than its factorization.

10259606781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6368656 (or 6368653 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 10259606781 in words is "ten billion, two hundred fifty-nine million, six hundred six thousand, seven hundred eighty-one".