420840086882 has 4 divisors (see below), whose sum is σ = 631260130326. Its totient is φ = 210420043440.

The previous prime is 420840086869. The next prime is 420840086899. The reversal of 420840086882 is 288680048024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 330118044481 + 90722042401 = 574559^2 + 301201^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 420840086882.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105210021719 + ... + 105210021722.

Almost surely, 2^420840086882 is an apocalyptic number.

420840086882 is a deficient number, since it is larger than the sum of its proper divisors (210420043444).

420840086882 is a wasteful number, since it uses less digits than its factorization.

420840086882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210420043443.

The product of its (nonzero) digits is 1572864, while the sum is 50.

The spelling of 420840086882 in words is "four hundred twenty billion, eight hundred forty million, eighty-six thousand, eight hundred eighty-two".