620488450488381 has 8 divisors (see below), whose sum is σ = 827336212183680. Its totient is φ = 413649827892672.

The previous prime is 620488450488367. The next prime is 620488450488437. The reversal of 620488450488381 is 183884054884026.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 620488450488381 - 2²⁹ = 620487913617469 is a prime.

It is a super-2 number, since 2×620488450488381² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620488450488481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2284616476 + ... + 2284888053.

It is an arithmetic number, because the mean of its divisors is an integer number (103417026522960).

Almost surely, 2^{620488450488381} is an apocalyptic number.

It is an amenable number.

620488450488381 is a deficient number, since it is larger than the sum of its proper divisors (206847761695299).

620488450488381 is a wasteful number, since it uses less digits than its factorization.

620488450488381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4569549795.

The product of its (nonzero) digits is 377487360, while the sum is 69.

The spelling of 620488450488381 in words is "six hundred twenty trillion, four hundred eighty-eight billion, four hundred fifty million, four hundred eighty-eight thousand, three hundred eighty-one".