10261078421 has 24 divisors (see below), whose sum is σ = 11938399200. Its totient is φ = 8788111200.

The previous prime is 10261078417. The next prime is 10261078441. The reversal of 10261078421 is 12487016201.

It is a happy number.

10261078421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10261078421 - 2² = 10261078417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10261078441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 403790 + ... + 428448.

It is an arithmetic number, because the mean of its divisors is an integer number (497433300).

Almost surely, 2^10261078421 is an apocalyptic number.

10261078421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10261078421 is a deficient number, since it is larger than the sum of its proper divisors (1677320779).

10261078421 is a wasteful number, since it uses less digits than its factorization.

10261078421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24881 (or 24870 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The spelling of 10261078421 in words is "ten billion, two hundred sixty-one million, seventy-eight thousand, four hundred twenty-one".