4621070521 has 4 divisors (see below), whose sum is σ = 4770137344. Its totient is φ = 4472003700.

The previous prime is 4621070501. The next prime is 4621070533. The reversal of 4621070521 is 1250701264.

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 4621070521 - 2²¹ = 4618973369 is a prime.

It is a super-2 number, since 2×4621070521² = 42708585520110422882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4621070521.

It is not an unprimeable number, because it can be changed into a prime (4621070501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74533365 + ... + 74533426.

It is an arithmetic number, because the mean of its divisors is an integer number (1192534336).

Almost surely, 2^4621070521 is an apocalyptic number.

It is an amenable number.

4621070521 is a deficient number, since it is larger than the sum of its proper divisors (149066823).

4621070521 is a wasteful number, since it uses less digits than its factorization.

4621070521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149066822.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 4621070521 is about 67978.4563005074. The cubic root of 4621070521 is about 1665.6389400281.

Adding to 4621070521 its reverse (1250701264), we get a palindrome (5871771785).

The spelling of 4621070521 in words is "four billion, six hundred twenty-one million, seventy thousand, five hundred twenty-one".