620371811253 has 8 divisors (see below), whose sum is σ = 827525055616. Its totient is φ = 413399887200.

The previous prime is 620371811249. The next prime is 620371811299. The reversal of 620371811253 is 352118173026.

It is a happy number.

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

It is not a de Polignac number, because 620371811253 - 2² = 620371811249 is a prime.

It is a super-2 number, since 2×620371811253² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620371811243) 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, 45322093 + ... + 45335778.

It is an arithmetic number, because the mean of its divisors is an integer number (103440631952).

Almost surely, 2^620371811253 is an apocalyptic number.

It is an amenable number.

620371811253 is a deficient number, since it is larger than the sum of its proper divisors (207153244363).

620371811253 is a wasteful number, since it uses less digits than its factorization.

620371811253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90660155.

The product of its (nonzero) digits is 60480, while the sum is 39.

Adding to 620371811253 its reverse (352118173026), we get a palindrome (972489984279).

The spelling of 620371811253 in words is "six hundred twenty billion, three hundred seventy-one million, eight hundred eleven thousand, two hundred fifty-three".