29190996631 has 4 divisors (see below), whose sum is σ = 29230285392. Its totient is φ = 29151707872.

The previous prime is 29190996577. The next prime is 29190996649. The reversal of 29190996631 is 13669909192.

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

It is a cyclic number.

It is not a de Polignac number, because 29190996631 - 2⁹ = 29190996119 is a prime.

It is a super-2 number, since 2×29190996631² (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 (29190996661) 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, 19643266 + ... + 19644751.

It is an arithmetic number, because the mean of its divisors is an integer number (7307571348).

Almost surely, 2^29190996631 is an apocalyptic number.

29190996631 is a deficient number, since it is larger than the sum of its proper divisors (39288761).

29190996631 is an equidigital number, since it uses as much as digits as its factorization.

29190996631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39288760.

The product of its (nonzero) digits is 1417176, while the sum is 55.

The spelling of 29190996631 in words is "twenty-nine billion, one hundred ninety million, nine hundred ninety-six thousand, six hundred thirty-one".