420931645371 has 6 divisors (see below), whose sum is σ = 608012376660. Its totient is φ = 280621096908.

The previous prime is 420931645369. The next prime is 420931645423. The reversal of 420931645371 is 173546139024.

420931645371 is a `hidden beast` number, since 4 + 20 + 9 + 31 + 64 + 537 + 1 = 666.

It is not a de Polignac number, because 420931645371 - 2¹ = 420931645369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420931645571) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23385091401 + ... + 23385091418.

It is an arithmetic number, because the mean of its divisors is an integer number (101335396110).

Almost surely, 2^420931645371 is an apocalyptic number.

420931645371 is a deficient number, since it is larger than the sum of its proper divisors (187080731289).

420931645371 is a wasteful number, since it uses less digits than its factorization.

420931645371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46770182825 (or 46770182822 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 420931645371 in words is "four hundred twenty billion, nine hundred thirty-one million, six hundred forty-five thousand, three hundred seventy-one".