620427521535 has 32 divisors (see below), whose sum is σ = 994662789120. Its totient is φ = 330235382400.

The previous prime is 620427521507. The next prime is 620427521557. The reversal of 620427521535 is 535125724026.

It is not a de Polignac number, because 620427521535 - 2¹⁴ = 620427505151 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57542845 + ... + 57553625.

It is an arithmetic number, because the mean of its divisors is an integer number (31083212160).

Almost surely, 2^620427521535 is an apocalyptic number.

620427521535 is a deficient number, since it is larger than the sum of its proper divisors (374235267585).

620427521535 is a wasteful number, since it uses less digits than its factorization.

620427521535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18079.

The product of its (nonzero) digits is 504000, while the sum is 42.

The spelling of 620427521535 in words is "six hundred twenty billion, four hundred twenty-seven million, five hundred twenty-one thousand, five hundred thirty-five".