1629749023231 has 8 divisors (see below), whose sum is σ = 1862602230944. Its totient is φ = 1396903795200.

The previous prime is 1629749023219. The next prime is 1629749023241. The reversal of 1629749023231 is 1323209479261.

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

It is a cyclic number.

It is not a de Polignac number, because 1629749023231 - 2¹³ = 1629749015039 is a prime.

It is a super-2 number, since 2×1629749023231² (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 (1629749023211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1550670 + ... + 2379931.

It is an arithmetic number, because the mean of its divisors is an integer number (232825278868).

Almost surely, 2^{1629749023231} is an apocalyptic number.

1629749023231 is a deficient number, since it is larger than the sum of its proper divisors (232853207713).

1629749023231 is an equidigital number, since it uses as much as digits as its factorization.

1629749023231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3989841.

The product of its (nonzero) digits is 979776, while the sum is 49.

The spelling of 1629749023231 in words is "one trillion, six hundred twenty-nine billion, seven hundred forty-nine million, twenty-three thousand, two hundred thirty-one".