620402402642 has 16 divisors (see below), whose sum is σ = 1050210964800. Its totient is φ = 272276916240.

The previous prime is 620402402629. The next prime is 620402402663. The reversal of 620402402642 is 246204204026.

It is a super-3 number, since 3×620402402642³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 620402402599 and 620402402608.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 486208142 + ... + 486209417.

It is an arithmetic number, because the mean of its divisors is an integer number (65638185300).

Almost surely, 2^620402402642 is an apocalyptic number.

620402402642 is a deficient number, since it is larger than the sum of its proper divisors (429808562158).

620402402642 is a wasteful number, since it uses less digits than its factorization.

620402402642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972417601.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 620402402642 its reverse (246204204026), we get a palindrome (866606606668).

The spelling of 620402402642 in words is "six hundred twenty billion, four hundred two million, four hundred two thousand, six hundred forty-two".