29172057486 has 32 divisors (see below), whose sum is σ = 68544137088. Its totient is φ = 8160015840.

The previous prime is 29172057461. The next prime is 29172057539. The reversal of 29172057486 is 68475027192.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16999176 + ... + 17000891.

It is an arithmetic number, because the mean of its divisors is an integer number (2142004284).

Almost surely, 2^29172057486 is an apocalyptic number.

29172057486 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

29172057486 is an abundant number, since it is smaller than the sum of its proper divisors (39372079602).

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

29172057486 is a wasteful number, since it uses less digits than its factorization.

29172057486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34000096.

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 29172057486 in words is "twenty-nine billion, one hundred seventy-two million, fifty-seven thousand, four hundred eighty-six".