214746746806728 has 128 divisors (see below), whose sum is σ = 602472871152000. Its totient is φ = 70867866297600.

The previous prime is 214746746806667. The next prime is 214746746806741. The reversal of 214746746806728 is 827608647647412.

It is a happy number.

214746746806728 is a `hidden beast` number, since 2 + 1 + 4 + 7 + 467 + 4 + 6 + 80 + 67 + 28 = 666.

It is a super-2 number, since 2×214746746806728² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 277920903 + ... + 278692521.

It is an arithmetic number, because the mean of its divisors is an integer number (4706819305875).

Almost surely, 2^{214746746806728} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 214746746806728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301236435576000).

214746746806728 is an abundant number, since it is smaller than the sum of its proper divisors (387726124345272).

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

214746746806728 is a wasteful number, since it uses less digits than its factorization.

214746746806728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784492 (or 784482 counting only the distinct ones).

The product of its (nonzero) digits is 1213857792, while the sum is 72.

The spelling of 214746746806728 in words is "two hundred fourteen trillion, seven hundred forty-six billion, seven hundred forty-six million, eight hundred six thousand, seven hundred twenty-eight".