620601811263 has 48 divisors (see below), whose sum is σ = 1095603757920. Its totient is φ = 345980073600.

The previous prime is 620601811231. The next prime is 620601811273. The reversal of 620601811263 is 362118106026.

It is a happy number.

620601811263 is a `hidden beast` number, since 6 + 20 + 601 + 8 + 1 + 1 + 26 + 3 = 666.

It is not a de Polignac number, because 620601811263 - 2⁵ = 620601811231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620601811213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5666328 + ... + 5774813.

It is an arithmetic number, because the mean of its divisors is an integer number (22825078290).

Almost surely, 2^620601811263 is an apocalyptic number.

620601811263 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

620601811263 is a deficient number, since it is larger than the sum of its proper divisors (475001946657).

620601811263 is a wasteful number, since it uses less digits than its factorization.

620601811263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11441205 (or 11441192 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

Adding to 620601811263 its reverse (362118106026), we get a palindrome (982719917289).

The spelling of 620601811263 in words is "six hundred twenty billion, six hundred one million, eight hundred eleven thousand, two hundred sixty-three".