1629764748444 has 48 divisors (see below), whose sum is σ = 4346915424768. Its totient is φ = 465553203648.

The previous prime is 1629764748433. The next prime is 1629764748449. The reversal of 1629764748444 is 4448474679261.

It is a super-2 number, since 2×1629764748444² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1629764748449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1535859 + ... + 2370314.

It is an arithmetic number, because the mean of its divisors is an integer number (90560738016).

Almost surely, 2^{1629764748444} is an apocalyptic number.

1629764748444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1629764748444 is an abundant number, since it is smaller than the sum of its proper divisors (2717150676324).

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

1629764748444 is a wasteful number, since it uses less digits than its factorization.

1629764748444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3911154 (or 3911152 counting only the distinct ones).

The product of its digits is 260112384, while the sum is 66.

The spelling of 1629764748444 in words is "one trillion, six hundred twenty-nine billion, seven hundred sixty-four million, seven hundred forty-eight thousand, four hundred forty-four".