29109623890 has 16 divisors (see below), whose sum is σ = 52632292608. Its totient is φ = 11591634096.

The previous prime is 29109623833. The next prime is 29109623891. The reversal of 29109623890 is 9832690192.

It is not an unprimeable number, because it can be changed into a prime (29109623891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6524592 + ... + 6529051.

It is an arithmetic number, because the mean of its divisors is an integer number (3289518288).

Almost surely, 2^29109623890 is an apocalyptic number.

29109623890 is a deficient number, since it is larger than the sum of its proper divisors (23522668718).

29109623890 is a wasteful number, since it uses less digits than its factorization.

29109623890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13053873.

The product of its (nonzero) digits is 419904, while the sum is 49.

The spelling of 29109623890 in words is "twenty-nine billion, one hundred nine million, six hundred twenty-three thousand, eight hundred ninety".