420007500899 has 18 divisors (see below), whose sum is σ = 492370642764. Its totient is φ = 357214122720.

The previous prime is 420007500889. The next prime is 420007500901. The reversal of 420007500899 is 998005700024.

It is a happy number.

It is not a de Polignac number, because 420007500899 - 2³² = 415712533603 is a prime.

It is a super-2 number, since 2×420007500899² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (420007500889) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 51919247 + ... + 51927335.

It is an arithmetic number, because the mean of its divisors is an integer number (27353924598).

Almost surely, 2^420007500899 is an apocalyptic number.

420007500899 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

420007500899 is a deficient number, since it is larger than the sum of its proper divisors (72363141865).

420007500899 is an frugal number, since it uses more digits than its factorization.

420007500899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16323 (or 8227 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 420007500899 in words is "four hundred twenty billion, seven million, five hundred thousand, eight hundred ninety-nine".