4621520742639 has 16 divisors (see below), whose sum is σ = 6306274444800. Its totient is φ = 3008911885056.

The previous prime is 4621520742617. The next prime is 4621520742659. The reversal of 4621520742639 is 9362470251264.

It is not a de Polignac number, because 4621520742639 - 2¹¹ = 4621520740591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4621520742591 and 4621520742600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4621520742659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1815079 + ... + 3540840.

It is an arithmetic number, because the mean of its divisors is an integer number (394142152800).

Almost surely, 2^{4621520742639} is an apocalyptic number.

4621520742639 is a deficient number, since it is larger than the sum of its proper divisors (1684753702161).

4621520742639 is a wasteful number, since it uses less digits than its factorization.

4621520742639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5362654.

The product of its (nonzero) digits is 4354560, while the sum is 51.

The spelling of 4621520742639 in words is "four trillion, six hundred twenty-one billion, five hundred twenty million, seven hundred forty-two thousand, six hundred thirty-nine".