29155979914 has 24 divisors (see below), whose sum is σ = 46429028388. Its totient is φ = 13684222080.

The previous prime is 29155979891. The next prime is 29155979917. The reversal of 29155979914 is 41997955192.

It can be written as a sum of positive squares in 2 ways, for example, as 28888101225 + 267878689 = 169965^2 + 16367^2 .

It is not an unprimeable number, because it can be changed into a prime (29155979917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23157417 + ... + 23158675.

Almost surely, 2^29155979914 is an apocalyptic number.

29155979914 is a deficient number, since it is larger than the sum of its proper divisors (17273048474).

29155979914 is an equidigital number, since it uses as much as digits as its factorization.

29155979914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078 (or 1819 counting only the distinct ones).

The product of its digits is 9185400, while the sum is 61.

The spelling of 29155979914 in words is "twenty-nine billion, one hundred fifty-five million, nine hundred seventy-nine thousand, nine hundred fourteen".