1629626954028 has 12 divisors (see below), whose sum is σ = 3802462892760. Its totient is φ = 543208984672.

The previous prime is 1629626954027. The next prime is 1629626954083. The reversal of 1629626954028 is 8204596269261.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1629626954027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67901123073 + ... + 67901123096.

It is an arithmetic number, because the mean of its divisors is an integer number (316871907730).

Almost surely, 2^{1629626954028} is an apocalyptic number.

It is an amenable number.

1629626954028 is an abundant number, since it is smaller than the sum of its proper divisors (2172835938732).

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

1629626954028 is a wasteful number, since it uses less digits than its factorization.

1629626954028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135802246176 (or 135802246174 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 60.

The spelling of 1629626954028 in words is "one trillion, six hundred twenty-nine billion, six hundred twenty-six million, nine hundred fifty-four thousand, twenty-eight".