421748270045 has 4 divisors (see below), whose sum is σ = 506097924060. Its totient is φ = 337398616032.

The previous prime is 421748269981. The next prime is 421748270077. The reversal of 421748270045 is 540072847124.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 70406376964 + 351341893081 = 265342^2 + 592741^2 .

It is a cyclic number.

It is not a de Polignac number, because 421748270045 - 2⁶ = 421748269981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421748269978 and 421748270005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42174827000 + ... + 42174827009.

It is an arithmetic number, because the mean of its divisors is an integer number (126524481015).

Almost surely, 2^421748270045 is an apocalyptic number.

It is an amenable number.

421748270045 is a deficient number, since it is larger than the sum of its proper divisors (84349654015).

421748270045 is an equidigital number, since it uses as much as digits as its factorization.

421748270045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84349654014.

The product of its (nonzero) digits is 501760, while the sum is 44.

The spelling of 421748270045 in words is "four hundred twenty-one billion, seven hundred forty-eight million, two hundred seventy thousand, forty-five".