149629831443 has 16 divisors (see below), whose sum is σ = 221746365600. Its totient is φ = 99720577440.

The previous prime is 149629831441. The next prime is 149629831457. The reversal of 149629831443 is 344138926941.

149629831443 is a `hidden beast` number, since 1 + 4 + 9 + 629 + 8 + 3 + 1 + 4 + 4 + 3 = 666.

It is not a de Polignac number, because 149629831443 - 2¹ = 149629831441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149629831443.

It is not an unprimeable number, because it can be changed into a prime (149629831441) 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, 822588 + ... + 987881.

It is an arithmetic number, because the mean of its divisors is an integer number (13859147850).

Almost surely, 2^149629831443 is an apocalyptic number.

149629831443 is a deficient number, since it is larger than the sum of its proper divisors (72116534157).

149629831443 is a wasteful number, since it uses less digits than its factorization.

149629831443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813539 (or 1813533 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

The spelling of 149629831443 in words is "one hundred forty-nine billion, six hundred twenty-nine million, eight hundred thirty-one thousand, four hundred forty-three".