29539531457 has 8 divisors (see below), whose sum is σ = 31303457640. Its totient is φ = 27825293440.

The previous prime is 29539531453. The next prime is 29539531459. The reversal of 29539531457 is 75413593592.

It can be written as a sum of positive squares in 4 ways, for example, as 135512881 + 29404018576 = 11641^2 + 171476^2 .

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 29539531457 - 2² = 29539531453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29539531399 and 29539531408.

It is not an unprimeable number, because it can be changed into a prime (29539531453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12420818 + ... + 12423195.

It is an arithmetic number, because the mean of its divisors is an integer number (3912932205).

Almost surely, 2^29539531457 is an apocalyptic number.

It is an amenable number.

29539531457 is a deficient number, since it is larger than the sum of its proper divisors (1763926183).

29539531457 is a wasteful number, since it uses less digits than its factorization.

29539531457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24844083.

The product of its digits is 5103000, while the sum is 53.

The spelling of 29539531457 in words is "twenty-nine billion, five hundred thirty-nine million, five hundred thirty-one thousand, four hundred fifty-seven".