10260657421 has 4 divisors (see below), whose sum is σ = 11726465632. Its totient is φ = 8794849212.

The previous prime is 10260657349. The next prime is 10260657427. The reversal of 10260657421 is 12475606201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10260657421 - 2⁷ = 10260657293 is a prime.

It is a super-2 number, since 2×10260657421² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10260657427) 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, 732904095 + ... + 732904108.

It is an arithmetic number, because the mean of its divisors is an integer number (2931616408).

Almost surely, 2^10260657421 is an apocalyptic number.

It is an amenable number.

10260657421 is a deficient number, since it is larger than the sum of its proper divisors (1465808211).

10260657421 is an equidigital number, since it uses as much as digits as its factorization.

10260657421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465808210.

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 10260657421 in words is "ten billion, two hundred sixty million, six hundred fifty-seven thousand, four hundred twenty-one".