420412426473731 has 4 divisors (see below), whose sum is σ = 420741130483200. Its totient is φ = 420083722464264.

The previous prime is 420412426473727. The next prime is 420412426473769. The reversal of 420412426473731 is 137374624214024.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 420412426473731 - 2² = 420412426473727 is a prime.

It is a super-2 number, since 2×420412426473731² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420412426473731.

It is not an unprimeable number, because it can be changed into a prime (420412426473131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164352002816 + ... + 164352005373.

It is an arithmetic number, because the mean of its divisors is an integer number (105185282620800).

Almost surely, 2^{420412426473731} is an apocalyptic number.

420412426473731 is a deficient number, since it is larger than the sum of its proper divisors (328704009469).

420412426473731 is a wasteful number, since it uses less digits than its factorization.

420412426473731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328704009468.

The product of its (nonzero) digits is 5419008, while the sum is 50.

The spelling of 420412426473731 in words is "four hundred twenty trillion, four hundred twelve billion, four hundred twenty-six million, four hundred seventy-three thousand, seven hundred thirty-one".