421510149988 has 12 divisors (see below), whose sum is σ = 737648590140. Its totient is φ = 210753409952.

The previous prime is 421510149901. The next prime is 421510150007. The reversal of 421510149988 is 889941015124.

It can be written as a sum of positive squares in 2 ways, for example, as 65301713764 + 356208436224 = 255542^2 + 596832^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284358 + ... + 961186.

It is an arithmetic number, because the mean of its divisors is an integer number (61470715845).

Almost surely, 2^421510149988 is an apocalyptic number.

It is an amenable number.

421510149988 is a deficient number, since it is larger than the sum of its proper divisors (316138440152).

421510149988 is a wasteful number, since it uses less digits than its factorization.

421510149988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832526 (or 832524 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 52.

The spelling of 421510149988 in words is "four hundred twenty-one billion, five hundred ten million, one hundred forty-nine thousand, nine hundred eighty-eight".