219401073620 has 24 divisors (see below), whose sum is σ = 466574438400. Its totient is φ = 86649537312.

The previous prime is 219401073601. The next prime is 219401073649. The reversal of 219401073620 is 26370104912.

219401073620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×219401073620² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 69429140 + ... + 69432299.

It is an arithmetic number, because the mean of its divisors is an integer number (19440601600).

Almost surely, 2^219401073620 is an apocalyptic number.

219401073620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

219401073620 is an abundant number, since it is smaller than the sum of its proper divisors (247173364780).

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

219401073620 is a wasteful number, since it uses less digits than its factorization.

219401073620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138861527 (or 138861525 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 219401073620 in words is "two hundred nineteen billion, four hundred one million, seventy-three thousand, six hundred twenty".