420547764571 has 8 divisors (see below), whose sum is σ = 464306842944. Its totient is φ = 377709930120.

The previous prime is 420547764541. The next prime is 420547764577. The reversal of 420547764571 is 175467745024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 420547764571 - 2¹⁵ = 420547731803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420547764577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230310021 + ... + 230311846.

It is an arithmetic number, because the mean of its divisors is an integer number (58038355368).

Almost surely, 2^420547764571 is an apocalyptic number.

420547764571 is a deficient number, since it is larger than the sum of its proper divisors (43759078373).

420547764571 is a wasteful number, since it uses less digits than its factorization.

420547764571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460621961.

The product of its (nonzero) digits is 6585600, while the sum is 52.

The spelling of 420547764571 in words is "four hundred twenty billion, five hundred forty-seven million, seven hundred sixty-four thousand, five hundred seventy-one".