428076651804081 has 32 divisors (see below), whose sum is σ = 672473373374208. Its totient is φ = 237128947061760.

The previous prime is 428076651804017. The next prime is 428076651804083. The reversal of 428076651804081 is 180408156670824.

It is a happy number.

It is not a de Polignac number, because 428076651804081 - 2⁶ = 428076651804017 is a prime.

It is a super-2 number, since 2×428076651804081² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (428076651804083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1583257900 + ... + 1583528253.

It is an arithmetic number, because the mean of its divisors is an integer number (21014792917944).

Almost surely, 2^{428076651804081} is an apocalyptic number.

428076651804081 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

428076651804081 is a deficient number, since it is larger than the sum of its proper divisors (244396721570127).

428076651804081 is a wasteful number, since it uses less digits than its factorization.

428076651804081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3166786361.

The product of its (nonzero) digits is 20643840, while the sum is 60.

The spelling of 428076651804081 in words is "four hundred twenty-eight trillion, seventy-six billion, six hundred fifty-one million, eight hundred four thousand, eighty-one".