29111881942 has 64 divisors (see below), whose sum is σ = 53429544000. Its totient is φ = 11713927680.

The previous prime is 29111881937. The next prime is 29111881949. The reversal of 29111881942 is 24918811192.

It is a junction number, because it is equal to n+sod(n) for n = 29111881892 and 29111881901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29111881949) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1224028 + ... + 1247584.

It is an arithmetic number, because the mean of its divisors is an integer number (834836625).

Almost surely, 2^29111881942 is an apocalyptic number.

29111881942 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

29111881942 is a deficient number, since it is larger than the sum of its proper divisors (24317662058).

29111881942 is a wasteful number, since it uses less digits than its factorization.

29111881942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23761.

The product of its digits is 82944, while the sum is 46.

The spelling of 29111881942 in words is "twenty-nine billion, one hundred eleven million, eight hundred eighty-one thousand, nine hundred forty-two".