29140329561 has 32 divisors (see below), whose sum is σ = 48533004288. Its totient is φ = 15166552320.

The previous prime is 29140329553. The next prime is 29140329571. The reversal of 29140329561 is 16592304192.

It is not a de Polignac number, because 29140329561 - 2³ = 29140329553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29140329511) 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, 1305475 + ... + 1327608.

It is an arithmetic number, because the mean of its divisors is an integer number (1516656384).

Almost surely, 2^29140329561 is an apocalyptic number.

29140329561 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

29140329561 is a deficient number, since it is larger than the sum of its proper divisors (19392674727).

29140329561 is a wasteful number, since it uses less digits than its factorization.

29140329561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2633141.

The product of its (nonzero) digits is 116640, while the sum is 42.

The spelling of 29140329561 in words is "twenty-nine billion, one hundred forty million, three hundred twenty-nine thousand, five hundred sixty-one".