29496616381 has 4 divisors (see below), whose sum is σ = 29606269500. Its totient is φ = 29386963264.

The previous prime is 29496616361. The next prime is 29496616393. The reversal of 29496616381 is 18361669492.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14959491481 + 14537124900 = 122309^2 + 120570^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29496616381 is a prime.

It is a super-2 number, since 2×29496616381² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29496616321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54826156 + ... + 54826693.

It is an arithmetic number, because the mean of its divisors is an integer number (7401567375).

Almost surely, 2^29496616381 is an apocalyptic number.

It is an amenable number.

29496616381 is a deficient number, since it is larger than the sum of its proper divisors (109653119).

29496616381 is a wasteful number, since it uses less digits than its factorization.

29496616381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109653118.

The product of its digits is 3359232, while the sum is 55.

The spelling of 29496616381 in words is "twenty-nine billion, four hundred ninety-six million, six hundred sixteen thousand, three hundred eighty-one".