420045715577 has 16 divisors (see below), whose sum is σ = 441588430080. Its totient is φ = 398777398272.

The previous prime is 420045715567. The next prime is 420045715589. The reversal of 420045715577 is 775517540024.

It is a cyclic number.

It is not a de Polignac number, because 420045715577 - 2²⁰ = 420044667001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420045715567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26312324 + ... + 26328282.

It is an arithmetic number, because the mean of its divisors is an integer number (27599276880).

Almost surely, 2^420045715577 is an apocalyptic number.

It is an amenable number.

420045715577 is a deficient number, since it is larger than the sum of its proper divisors (21542714503).

420045715577 is a wasteful number, since it uses less digits than its factorization.

420045715577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24472.

The product of its (nonzero) digits is 1372000, while the sum is 47.

The spelling of 420045715577 in words is "four hundred twenty billion, forty-five million, seven hundred fifteen thousand, five hundred seventy-seven".