421755423245 has 64 divisors (see below), whose sum is σ = 599603558400. Its totient is φ = 281788657920.

The previous prime is 421755423239. The next prime is 421755423301. The reversal of 421755423245 is 542324557124.

It is not a de Polignac number, because 421755423245 - 2¹⁴ = 421755406861 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421755423196 and 421755423205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18707630 + ... + 18730160.

It is an arithmetic number, because the mean of its divisors is an integer number (9368805600).

Almost surely, 2^421755423245 is an apocalyptic number.

It is an amenable number.

421755423245 is a deficient number, since it is larger than the sum of its proper divisors (177848135155).

421755423245 is a wasteful number, since it uses less digits than its factorization.

421755423245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23250.

The product of its digits is 1344000, while the sum is 44.

The spelling of 421755423245 in words is "four hundred twenty-one billion, seven hundred fifty-five million, four hundred twenty-three thousand, two hundred forty-five".