676004521021 has 8 divisors (see below), whose sum is σ = 677494580000. Its totient is φ = 674515004400.

The previous prime is 676004521007. The next prime is 676004521051. The reversal of 676004521021 is 120125400676.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 676004521021 - 2¹³ = 676004512829 is a prime.

It is a super-2 number, since 2×676004521021² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676004521051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2412610 + ... + 2678188.

It is an arithmetic number, because the mean of its divisors is an integer number (84686822500).

Almost surely, 2^676004521021 is an apocalyptic number.

It is an amenable number.

676004521021 is a deficient number, since it is larger than the sum of its proper divisors (1490058979).

676004521021 is a wasteful number, since it uses less digits than its factorization.

676004521021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271179.

The product of its (nonzero) digits is 20160, while the sum is 34.

Adding to 676004521021 its reverse (120125400676), we get a palindrome (796129921697).

The spelling of 676004521021 in words is "six hundred seventy-six billion, four million, five hundred twenty-one thousand, twenty-one".