620431063445 has 16 divisors (see below), whose sum is σ = 751395025920. Its totient is φ = 491760258624.

The previous prime is 620431063433. The next prime is 620431063471. The reversal of 620431063445 is 544360134026.

It is a cyclic number.

It is not a de Polignac number, because 620431063445 - 2¹⁸ = 620430801301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 620431063399 and 620431063408.

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, 12915962 + ... + 12963908.

It is an arithmetic number, because the mean of its divisors is an integer number (46962189120).

Almost surely, 2^620431063445 is an apocalyptic number.

It is an amenable number.

620431063445 is a deficient number, since it is larger than the sum of its proper divisors (130963962475).

620431063445 is a wasteful number, since it uses less digits than its factorization.

620431063445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71804.

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 620431063445 in words is "six hundred twenty billion, four hundred thirty-one million, sixty-three thousand, four hundred forty-five".