420837545875 has 16 divisors (see below), whose sum is σ = 530405325216. Its totient is φ = 333336660000.

The previous prime is 420837545851. The next prime is 420837545977. The reversal of 420837545875 is 578545738024.

It is a de Polignac number, because none of the positive numbers 2^k-420837545875 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16654209 + ... + 16679458.

It is an arithmetic number, because the mean of its divisors is an integer number (33150332826).

Almost surely, 2^420837545875 is an apocalyptic number.

420837545875 is a deficient number, since it is larger than the sum of its proper divisors (109567779341).

420837545875 is a wasteful number, since it uses less digits than its factorization.

420837545875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33333783 (or 33333773 counting only the distinct ones).

The product of its (nonzero) digits is 37632000, while the sum is 58.

The spelling of 420837545875 in words is "four hundred twenty billion, eight hundred thirty-seven million, five hundred forty-five thousand, eight hundred seventy-five".