29932139775 has 24 divisors (see below), whose sum is σ = 49535110800. Its totient is φ = 15948547840.

The previous prime is 29932139773. The next prime is 29932139789. The reversal of 29932139775 is 57793123992.

It is not a de Polignac number, because 29932139775 - 2¹ = 29932139773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29932139771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111552 + ... + 268901.

It is an arithmetic number, because the mean of its divisors is an integer number (2063962950).

Almost surely, 2^29932139775 is an apocalyptic number.

29932139775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

29932139775 is a deficient number, since it is larger than the sum of its proper divisors (19602971025).

29932139775 is a wasteful number, since it uses less digits than its factorization.

29932139775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381515 (or 381510 counting only the distinct ones).

The product of its digits is 6429780, while the sum is 57.

The spelling of 29932139775 in words is "twenty-nine billion, nine hundred thirty-two million, one hundred thirty-nine thousand, seven hundred seventy-five".