29528716131 has 20 divisors (see below), whose sum is σ = 44202945600. Its totient is φ = 19644687216.

The previous prime is 29528716127. The next prime is 29528716141. The reversal of 29528716131 is 13161782592.

29528716131 is a `hidden beast` number, since 2 + 9 + 5 + 28 + 7 + 1 + 613 + 1 = 666.

It is not a de Polignac number, because 29528716131 - 2² = 29528716127 is a prime.

It is a super-2 number, since 2×29528716131² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29528716141) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 341736 + ... + 419333.

It is an arithmetic number, because the mean of its divisors is an integer number (2210147280).

Almost surely, 2^29528716131 is an apocalyptic number.

29528716131 is a deficient number, since it is larger than the sum of its proper divisors (14674229469).

29528716131 is an equidigital number, since it uses as much as digits as its factorization.

29528716131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761560 (or 761551 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The spelling of 29528716131 in words is "twenty-nine billion, five hundred twenty-eight million, seven hundred sixteen thousand, one hundred thirty-one".