420236434186835 has 48 divisors (see below), whose sum is σ = 617997666212640. Its totient is φ = 272771376353280.

The previous prime is 420236434186753. The next prime is 420236434186843. The reversal of 420236434186835 is 538681434632024.

It is not a de Polignac number, because 420236434186835 - 2²⁶ = 420236367077971 is a prime.

It is a super-2 number, since 2×420236434186835² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31424576 + ... + 42754845.

It is an arithmetic number, because the mean of its divisors is an integer number (12874951379430).

Almost surely, 2^{420236434186835} is an apocalyptic number.

420236434186835 is a deficient number, since it is larger than the sum of its proper divisors (197761232025805).

420236434186835 is a wasteful number, since it uses less digits than its factorization.

420236434186835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74180676 (or 74180669 counting only the distinct ones).

The product of its (nonzero) digits is 79626240, while the sum is 59.

The spelling of 420236434186835 in words is "four hundred twenty trillion, two hundred thirty-six billion, four hundred thirty-four million, one hundred eighty-six thousand, eight hundred thirty-five".