620306421242135 has 16 divisors (see below), whose sum is σ = 783580315929600. Its totient is φ = 470105754219936.

The previous prime is 620306421242119. The next prime is 620306421242147. The reversal of 620306421242135 is 531242124603026.

It is a cyclic number.

It is not a de Polignac number, because 620306421242135 - 2⁴ = 620306421242119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 620306421242092 and 620306421242101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145228739 + ... + 149438948.

It is an arithmetic number, because the mean of its divisors is an integer number (48973769745600).

Almost surely, 2^{620306421242135} is an apocalyptic number.

620306421242135 is a deficient number, since it is larger than the sum of its proper divisors (163273894687465).

620306421242135 is a wasteful number, since it uses less digits than its factorization.

620306421242135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294689870.

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 620306421242135 in words is "six hundred twenty trillion, three hundred six billion, four hundred twenty-one million, two hundred forty-two thousand, one hundred thirty-five".