421432252023155 has 8 divisors (see below), whose sum is σ = 505720965713472. Its totient is φ = 337144292761408.

The previous prime is 421432252023131. The next prime is 421432252023197. The reversal of 421432252023155 is 551320252234124.

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 421432252023155 - 2¹⁴ = 421432252006771 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187377467 + ... + 189613236.

It is an arithmetic number, because the mean of its divisors is an integer number (63215120714184).

Almost surely, 2^{421432252023155} is an apocalyptic number.

421432252023155 is a deficient number, since it is larger than the sum of its proper divisors (84288713690317).

421432252023155 is a wasteful number, since it uses less digits than its factorization.

421432252023155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377214285.

The product of its (nonzero) digits is 576000, while the sum is 41.

The spelling of 421432252023155 in words is "four hundred twenty-one trillion, four hundred thirty-two billion, two hundred fifty-two million, twenty-three thousand, one hundred fifty-five".