420761417023 has 4 divisors (see below), whose sum is σ = 421140824280. Its totient is φ = 420382009768.

The previous prime is 420761417009. The next prime is 420761417039. The reversal of 420761417023 is 320714167024.

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 420761417023 - 2²⁵ = 420727862591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420761417093) 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, 189701965 + ... + 189704182.

It is an arithmetic number, because the mean of its divisors is an integer number (105285206070).

Almost surely, 2^420761417023 is an apocalyptic number.

420761417023 is a deficient number, since it is larger than the sum of its proper divisors (379407257).

420761417023 is a wasteful number, since it uses less digits than its factorization.

420761417023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379407256.

The product of its (nonzero) digits is 56448, while the sum is 37.

The spelling of 420761417023 in words is "four hundred twenty billion, seven hundred sixty-one million, four hundred seventeen thousand, twenty-three".