421454555042541 has 16 divisors (see below), whose sum is σ = 567143922576000. Its totient is φ = 278367891876288.

The previous prime is 421454555042459. The next prime is 421454555042557. The reversal of 421454555042541 is 145240555454124.

It is not a de Polignac number, because 421454555042541 - 2¹⁴ = 421454555026157 is a prime.

It is a super-2 number, since 2×421454555042541² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421454555042441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52022761 + ... + 59575806.

It is an arithmetic number, because the mean of its divisors is an integer number (35446495161000).

Almost surely, 2^{421454555042541} is an apocalyptic number.

It is an amenable number.

421454555042541 is a deficient number, since it is larger than the sum of its proper divisors (145689367533459).

421454555042541 is a wasteful number, since it uses less digits than its factorization.

421454555042541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111610228.

The product of its (nonzero) digits is 12800000, while the sum is 51.

The spelling of 421454555042541 in words is "four hundred twenty-one trillion, four hundred fifty-four billion, five hundred fifty-five million, forty-two thousand, five hundred forty-one".