4680451621 has 4 divisors (see below), whose sum is σ = 4926791200. Its totient is φ = 4434112044.

The previous prime is 4680451561. The next prime is 4680451639. The reversal of 4680451621 is 1261540864.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4680451621 - 2²¹ = 4678354469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4680451121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123169761 + ... + 123169798.

It is an arithmetic number, because the mean of its divisors is an integer number (1231697800).

Almost surely, 2^4680451621 is an apocalyptic number.

It is an amenable number.

4680451621 is a deficient number, since it is larger than the sum of its proper divisors (246339579).

4680451621 is a wasteful number, since it uses less digits than its factorization.

4680451621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246339578.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 4680451621 is about 68413.8262414843. The cubic root of 4680451621 is about 1672.7431247022.

The spelling of 4680451621 in words is "four billion, six hundred eighty million, four hundred fifty-one thousand, six hundred twenty-one".