29531148121893 has 16 divisors (see below), whose sum is σ = 42968923753536. Its totient is φ = 17891612826240.

The previous prime is 29531148121861. The next prime is 29531148121957. The reversal of 29531148121893 is 39812184113592.

It is not a de Polignac number, because 29531148121893 - 2⁵ = 29531148121861 is a prime.

It is a super-2 number, since 2×29531148121893² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29531148122893) 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, 151218496 + ... + 151413657.

It is an arithmetic number, because the mean of its divisors is an integer number (2685557734596).

Almost surely, 2^{29531148121893} is an apocalyptic number.

It is an amenable number.

29531148121893 is a deficient number, since it is larger than the sum of its proper divisors (13437775631643).

29531148121893 is a wasteful number, since it uses less digits than its factorization.

29531148121893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302635124.

The product of its digits is 3732480, while the sum is 57.

The spelling of 29531148121893 in words is "twenty-nine trillion, five hundred thirty-one billion, one hundred forty-eight million, one hundred twenty-one thousand, eight hundred ninety-three".