29158455620449 has 27 divisors (see below), whose sum is σ = 31310814348147. Its totient is φ = 27149962609728.

The previous prime is 29158455620443. The next prime is 29158455620453. The reversal of 29158455620449 is 94402655485192.

The square root of 29158455620449 is 5399857.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2660340413025 + 26498115207424 = 1631055^2 + 5147632^2 .

It is a de Polignac number, because none of the positive numbers 2^k-29158455620449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29158455620443) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 6053237289 + ... + 6053242105.

Almost surely, 2^{29158455620449} is an apocalyptic number.

29158455620449 is the 5399857-th square number.

29158455620449 is the 2699929-th centered octagonal number.

It is an amenable number.

29158455620449 is a deficient number, since it is larger than the sum of its proper divisors (2152358727698).

29158455620449 is an frugal number, since it uses more digits than its factorization.

29158455620449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9790 (or 4895 counting only the distinct ones).

The product of its (nonzero) digits is 124416000, while the sum is 64.

The spelling of 29158455620449 in words is "twenty-nine trillion, one hundred fifty-eight billion, four hundred fifty-five million, six hundred twenty thousand, four hundred forty-nine".