4669899507621 has 144 divisors (see below), whose sum is σ = 7412157602304. Its totient is φ = 2937582692352.

The previous prime is 4669899507593. The next prime is 4669899507673. The reversal of 4669899507621 is 1267059989664.

4669899507621 is a `hidden beast` number, since 4 + 6 + 6 + 9 + 8 + 99 + 507 + 6 + 21 = 666.

It is not a de Polignac number, because 4669899507621 - 2⁵ = 4669899507589 is a prime.

It is a super-2 number, since 2×4669899507621² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4669899507621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4669899507121) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 7568718505 + ... + 7568719121.

Almost surely, 2^{4669899507621} is an apocalyptic number.

It is an amenable number.

4669899507621 is a deficient number, since it is larger than the sum of its proper divisors (2742258094683).

4669899507621 is an equidigital number, since it uses as much as digits as its factorization.

4669899507621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382 (or 1347 counting only the distinct ones).

The product of its (nonzero) digits is 352719360, while the sum is 72.

The spelling of 4669899507621 in words is "four trillion, six hundred sixty-nine billion, eight hundred ninety-nine million, five hundred seven thousand, six hundred twenty-one".