29712412381 has 4 divisors (see below), whose sum is σ = 29946368512. Its totient is φ = 29478456252.

The previous prime is 29712412357. The next prime is 29712412403. The reversal of 29712412381 is 18321421792.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29712412381 - 2³¹ = 27564928733 is a prime.

It is a super-2 number, since 2×29712412381² (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 (29712412321) 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, 116977875 + ... + 116978128.

It is an arithmetic number, because the mean of its divisors is an integer number (7486592128).

Almost surely, 2^29712412381 is an apocalyptic number.

It is an amenable number.

29712412381 is a deficient number, since it is larger than the sum of its proper divisors (233956131).

29712412381 is a wasteful number, since it uses less digits than its factorization.

29712412381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233956130.

The product of its digits is 48384, while the sum is 40.

The spelling of 29712412381 in words is "twenty-nine billion, seven hundred twelve million, four hundred twelve thousand, three hundred eighty-one".