620035201631 has 4 divisors (see below), whose sum is σ = 620999487192. Its totient is φ = 619070916072.

The previous prime is 620035201619. The next prime is 620035201637. The reversal of 620035201631 is 136102530026.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 620035201631 - 2¹⁴ = 620035185247 is a prime.

It is a super-2 number, since 2×620035201631² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 620035201594 and 620035201603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620035201637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482141816 + ... + 482143101.

It is an arithmetic number, because the mean of its divisors is an integer number (155249871798).

Almost surely, 2^620035201631 is an apocalyptic number.

620035201631 is a deficient number, since it is larger than the sum of its proper divisors (964285561).

620035201631 is an equidigital number, since it uses as much as digits as its factorization.

620035201631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964285560.

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 620035201631 its reverse (136102530026), we get a palindrome (756137731657).

The spelling of 620035201631 in words is "six hundred twenty billion, thirty-five million, two hundred one thousand, six hundred thirty-one".