4621621708021 has 8 divisors (see below), whose sum is σ = 4627743773184. Its totient is φ = 4615503695040.

The previous prime is 4621621707979. The next prime is 4621621708079. The reversal of 4621621708021 is 1208071261264.

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 4621621708021 - 2⁷ = 4621621707893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4621621708091) 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, 1272930 + ... + 3295996.

It is an arithmetic number, because the mean of its divisors is an integer number (578467971648).

Almost surely, 2^{4621621708021} is an apocalyptic number.

It is an amenable number.

4621621708021 is a deficient number, since it is larger than the sum of its proper divisors (6122065163).

4621621708021 is a wasteful number, since it uses less digits than its factorization.

4621621708021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2026091.

The product of its (nonzero) digits is 64512, while the sum is 40.

Adding to 4621621708021 its reverse (1208071261264), we get a palindrome (5829692969285).

The spelling of 4621621708021 in words is "four trillion, six hundred twenty-one billion, six hundred twenty-one million, seven hundred eight thousand, twenty-one".