10261400405 has 8 divisors (see below), whose sum is σ = 12314775384. Its totient is φ = 8208390400.

The previous prime is 10261400393. The next prime is 10261400411. The reversal of 10261400405 is 50400416201.

It can be written as a sum of positive squares in 4 ways, for example, as 3036230404 + 7225170001 = 55102^2 + 85001^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10261400405 - 2⁶ = 10261400341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25016 + ... + 145425.

It is an arithmetic number, because the mean of its divisors is an integer number (1539346923).

Almost surely, 2^10261400405 is an apocalyptic number.

It is an amenable number.

10261400405 is a deficient number, since it is larger than the sum of its proper divisors (2053374979).

10261400405 is a wasteful number, since it uses less digits than its factorization.

10261400405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182487.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 10261400405 its reverse (50400416201), we get a palindrome (60661816606).

The spelling of 10261400405 in words is "ten billion, two hundred sixty-one million, four hundred thousand, four hundred five".