421157051084 has 24 divisors (see below), whose sum is σ = 918888112128. Its totient is φ = 164087162640.

The previous prime is 421157050997. The next prime is 421157051089. The reversal of 421157051084 is 480150751124.

It is not an unprimeable number, because it can be changed into a prime (421157051089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 683696204 + ... + 683696819.

It is an arithmetic number, because the mean of its divisors is an integer number (38287004672).

Almost surely, 2^421157051084 is an apocalyptic number.

421157051084 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

421157051084 is an abundant number, since it is smaller than the sum of its proper divisors (497731061044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421157051084 is a wasteful number, since it uses less digits than its factorization.

421157051084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367393045 (or 1367393043 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 38.

The spelling of 421157051084 in words is "four hundred twenty-one billion, one hundred fifty-seven million, fifty-one thousand, eighty-four".