29271417381 has 6 divisors (see below), whose sum is σ = 42280936230. Its totient is φ = 19514278248.

The previous prime is 29271417379. The next prime is 29271417389. The reversal of 29271417381 is 18371417292.

29271417381 is a `hidden beast` number, since 2 + 92 + 71 + 417 + 3 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22865976225 + 6405441156 = 151215^2 + 80034^2 .

It is not a de Polignac number, because 29271417381 - 2¹ = 29271417379 is a prime.

It is a super-2 number, since 2×29271417381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29271417389) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1626189846 + ... + 1626189863.

It is an arithmetic number, because the mean of its divisors is an integer number (7046822705).

Almost surely, 2^29271417381 is an apocalyptic number.

It is an amenable number.

29271417381 is a deficient number, since it is larger than the sum of its proper divisors (13009518849).

29271417381 is a wasteful number, since it uses less digits than its factorization.

29271417381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3252379715 (or 3252379712 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The spelling of 29271417381 in words is "twenty-nine billion, two hundred seventy-one million, four hundred seventeen thousand, three hundred eighty-one".