420303778593 has 8 divisors (see below), whose sum is σ = 574073453856. Its totient is φ = 273368311200.

The previous prime is 420303778553. The next prime is 420303778627. The reversal of 420303778593 is 395877303024.

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

It is not a de Polignac number, because 420303778593 - 2³² = 416008811297 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (420303778553) 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, 1708551823 + ... + 1708552068.

It is an arithmetic number, because the mean of its divisors is an integer number (71759181732).

Almost surely, 2^420303778593 is an apocalyptic number.

It is an amenable number.

420303778593 is a deficient number, since it is larger than the sum of its proper divisors (153769675263).

420303778593 is a wasteful number, since it uses less digits than its factorization.

420303778593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3417103935.

The product of its (nonzero) digits is 3810240, while the sum is 51.

The spelling of 420303778593 in words is "four hundred twenty billion, three hundred three million, seven hundred seventy-eight thousand, five hundred ninety-three".