421054553450415 has 16 divisors (see below), whose sum is σ = 673687898337888. Its totient is φ = 224562224234496.

The previous prime is 421054553450407. The next prime is 421054553450477. The reversal of 421054553450415 is 514054355450124.

It is not a de Polignac number, because 421054553450415 - 2³ = 421054553450407 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5077087 + ... + 29459903.

It is an arithmetic number, because the mean of its divisors is an integer number (42105493646118).

Almost surely, 2^{421054553450415} is an apocalyptic number.

421054553450415 is a deficient number, since it is larger than the sum of its proper divisors (252633344887473).

421054553450415 is a wasteful number, since it uses less digits than its factorization.

421054553450415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25534058.

The product of its (nonzero) digits is 4800000, while the sum is 48.

The spelling of 421054553450415 in words is "four hundred twenty-one trillion, fifty-four billion, five hundred fifty-three million, four hundred fifty thousand, four hundred fifteen".