620642642462 has 16 divisors (see below), whose sum is σ = 961151329152. Its totient is φ = 300262121760.

The previous prime is 620642642453. The next prime is 620642642471. The reversal of 620642642462 is 264246246026.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (620642642453) and next prime (620642642471).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428093 + ... + 1193544.

It is an arithmetic number, because the mean of its divisors is an integer number (60071958072).

Almost surely, 2^620642642462 is an apocalyptic number.

620642642462 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

620642642462 is a deficient number, since it is larger than the sum of its proper divisors (340508686690).

620642642462 is a wasteful number, since it uses less digits than its factorization.

620642642462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627843.

The product of its (nonzero) digits is 1327104, while the sum is 44.

Adding to 620642642462 its reverse (264246246026), we get a palindrome (884888888488).

The spelling of 620642642462 in words is "six hundred twenty billion, six hundred forty-two million, six hundred forty-two thousand, four hundred sixty-two".