420352535715 has 64 divisors (see below), whose sum is σ = 802281701376. Its totient is φ = 183756431232.

The previous prime is 420352535693. The next prime is 420352535717. The reversal of 420352535715 is 517535253024.

It is a happy number.

It is a Cunningham number, because it is equal to 648346²-1.

It is not a de Polignac number, because 420352535715 - 2¹⁴ = 420352519331 is a prime.

It is a super-2 number, since 2×420352535715² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (420352535717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9703594 + ... + 9746816.

It is an arithmetic number, because the mean of its divisors is an integer number (12535651584).

Almost surely, 2^420352535715 is an apocalyptic number.

420352535715 is a deficient number, since it is larger than the sum of its proper divisors (381929165661).

420352535715 is a wasteful number, since it uses less digits than its factorization.

420352535715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47288.

The product of its (nonzero) digits is 630000, while the sum is 42.

Adding to 420352535715 its reverse (517535253024), we get a palindrome (937887788739).

The spelling of 420352535715 in words is "four hundred twenty billion, three hundred fifty-two million, five hundred thirty-five thousand, seven hundred fifteen".