420188250784 has 48 divisors (see below), whose sum is σ = 833668234560. Its totient is φ = 208464698880.

The previous prime is 420188250701. The next prime is 420188250799. The reversal of 420188250784 is 487052881024.

It is a super-2 number, since 2×420188250784² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8118492 + ... + 8170084.

It is an arithmetic number, because the mean of its divisors is an integer number (17368088220).

Almost surely, 2^420188250784 is an apocalyptic number.

It is an amenable number.

420188250784 is a deficient number, since it is larger than the sum of its proper divisors (413479983776).

420188250784 is a wasteful number, since it uses less digits than its factorization.

420188250784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53573 (or 53565 counting only the distinct ones).

The product of its (nonzero) digits is 1146880, while the sum is 49.

The spelling of 420188250784 in words is "four hundred twenty billion, one hundred eighty-eight million, two hundred fifty thousand, seven hundred eighty-four".