1629720754272 has 120 divisors (see below), whose sum is σ = 5161653072576. Its totient is φ = 501452529408.

The previous prime is 1629720754157. The next prime is 1629720754307. The reversal of 1629720754272 is 2724570279261.

1629720754272 is a `hidden beast` number, since 1 + 6 + 2 + 9 + 7 + 20 + 7 + 542 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 24149008 + ... + 24216399.

Almost surely, 2^{1629720754272} is an apocalyptic number.

1629720754272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1629720754272 is an abundant number, since it is smaller than the sum of its proper divisors (3531932318304).

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

1629720754272 is a wasteful number, since it uses less digits than its factorization.

1629720754272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48365442 (or 48365425 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 54.

The spelling of 1629720754272 in words is "one trillion, six hundred twenty-nine billion, seven hundred twenty million, seven hundred fifty-four thousand, two hundred seventy-two".