421434244432451 has 8 divisors (see below), whose sum is σ = 421507382558400. Its totient is φ = 421361112490920.

The previous prime is 421434244432433. The next prime is 421434244432519. The reversal of 421434244432451 is 154234442434124.

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

It is a cyclic number.

It is not a de Polignac number, because 421434244432451 - 2³⁴ = 421417064563267 is a prime.

It is a super-2 number, since 2×421434244432451² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421434244432396 and 421434244432405.

It is not an unprimeable number, because it can be changed into a prime (421434234432451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135811520 + ... + 138879938.

It is an arithmetic number, because the mean of its divisors is an integer number (52688422819800).

Almost surely, 2^{421434244432451} is an apocalyptic number.

421434244432451 is a deficient number, since it is larger than the sum of its proper divisors (73138125949).

421434244432451 is a wasteful number, since it uses less digits than its factorization.

421434244432451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3092209.

The product of its digits is 5898240, while the sum is 47.

Adding to 421434244432451 its reverse (154234442434124), we get a palindrome (575668686866575).

The spelling of 421434244432451 in words is "four hundred twenty-one trillion, four hundred thirty-four billion, two hundred forty-four million, four hundred thirty-two thousand, four hundred fifty-one".