421824265050251 has 4 divisors (see below), whose sum is σ = 482084874343152. Its totient is φ = 361563655757352.

The previous prime is 421824265050211. The next prime is 421824265050257. The reversal of 421824265050251 is 152050562428124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 421824265050251 - 2²⁶ = 421824197941387 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421824265050196 and 421824265050205.

It is not an unprimeable number, because it can be changed into a prime (421824265050257) 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, 30130304646440 + ... + 30130304646453.

It is an arithmetic number, because the mean of its divisors is an integer number (120521218585788).

Almost surely, 2^{421824265050251} is an apocalyptic number.

421824265050251 is a deficient number, since it is larger than the sum of its proper divisors (60260609292901).

421824265050251 is an equidigital number, since it uses as much as digits as its factorization.

421824265050251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60260609292900.

The product of its (nonzero) digits is 1536000, while the sum is 47.

The spelling of 421824265050251 in words is "four hundred twenty-one trillion, eight hundred twenty-four billion, two hundred sixty-five million, fifty thousand, two hundred fifty-one".