29177830140 has 24 divisors (see below), whose sum is σ = 81697924560. Its totient is φ = 7780754688.

The previous prime is 29177830103. The next prime is 29177830147. The reversal of 29177830140 is 4103877192.

It is a junction number, because it is equal to n+sod(n) for n = 29177830092 and 29177830101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29177830147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243148525 + ... + 243148644.

It is an arithmetic number, because the mean of its divisors is an integer number (3404080190).

Almost surely, 2^29177830140 is an apocalyptic number.

29177830140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29177830140 is an abundant number, since it is smaller than the sum of its proper divisors (52520094420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29177830140 is a wasteful number, since it uses less digits than its factorization.

29177830140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486297181 (or 486297179 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The spelling of 29177830140 in words is "twenty-nine billion, one hundred seventy-seven million, eight hundred thirty thousand, one hundred forty".