10419662021 has 4 divisors (see below), whose sum is σ = 10419928332. Its totient is φ = 10419395712.

The previous prime is 10419661979. The next prime is 10419662023. The reversal of 10419662021 is 12026691401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12026691401 = 397 ⋅30293933.

It can be written as a sum of positive squares in 2 ways, for example, as 4476948100 + 5942713921 = 66910^2 + 77089^2 .

It is a cyclic number.

It is not a de Polignac number, because 10419662021 - 2⁶ = 10419661957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10419662023) 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, 61676 + ... + 156981.

It is an arithmetic number, because the mean of its divisors is an integer number (2604982083).

Almost surely, 2^10419662021 is an apocalyptic number.

It is an amenable number.

10419662021 is a deficient number, since it is larger than the sum of its proper divisors (266311).

10419662021 is an equidigital number, since it uses as much as digits as its factorization.

10419662021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266310.

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 10419662021 in words is "ten billion, four hundred nineteen million, six hundred sixty-two thousand, twenty-one".