4125622661850 has 96 divisors (see below), whose sum is σ = 10367395444224. Its totient is φ = 1085633899200.

The previous prime is 4125622661791. The next prime is 4125622661917. The reversal of 4125622661850 is 581662265214.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4125622661850.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3900565 + ... + 4844135.

It is an arithmetic number, because the mean of its divisors is an integer number (107993702544).

Almost surely, 2^{4125622661850} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4125622661850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5183697722112).

4125622661850 is an abundant number, since it is smaller than the sum of its proper divisors (6241772782374).

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

4125622661850 is a wasteful number, since it uses less digits than its factorization.

4125622661850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943972 (or 943967 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 48.

The spelling of 4125622661850 in words is "four trillion, one hundred twenty-five billion, six hundred twenty-two million, six hundred sixty-one thousand, eight hundred fifty".