1644625500134 has 8 divisors (see below), whose sum is σ = 2467025756040. Its totient is φ = 822283581456.

The previous prime is 1644625500083. The next prime is 1644625500173. The reversal of 1644625500134 is 4310055264461.

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

It is a junction number, because it is equal to n+sod(n) for n = 1644625500091 and 1644625500100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14513759 + ... + 14626634.

It is an arithmetic number, because the mean of its divisors is an integer number (308378219505).

Almost surely, 2^{1644625500134} is an apocalyptic number.

1644625500134 is a deficient number, since it is larger than the sum of its proper divisors (822400255906).

1644625500134 is a wasteful number, since it uses less digits than its factorization.

1644625500134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29168614.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 1644625500134 in words is "one trillion, six hundred forty-four billion, six hundred twenty-five million, five hundred thousand, one hundred thirty-four".