621624426126 has 64 divisors (see below), whose sum is σ = 1415382474240. Its totient is φ = 180162829440.

The previous prime is 621624426037. The next prime is 621624426127.

621624426126 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621624426127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25145460 + ... + 25170168.

It is an arithmetic number, because the mean of its divisors is an integer number (22115351160).

Almost surely, 2^621624426126 is an apocalyptic number.

621624426126 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

621624426126 is an abundant number, since it is smaller than the sum of its proper divisors (793758048114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

621624426126 is a wasteful number, since it uses less digits than its factorization.

621624426126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41321.

The product of its digits is 331776, while the sum is 42.

The spelling of 621624426126 in words is "six hundred twenty-one billion, six hundred twenty-four million, four hundred twenty-six thousand, one hundred twenty-six".