29431809148 has 24 divisors (see below), whose sum is σ = 61422907392. Its totient is φ = 12065213424.

The previous prime is 29431809139. The next prime is 29431809163. The reversal of 29431809148 is 84190813492.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22850140 + ... + 22851427.

It is an arithmetic number, because the mean of its divisors is an integer number (2559287808).

Almost surely, 2^29431809148 is an apocalyptic number.

29431809148 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

29431809148 is an abundant number, since it is smaller than the sum of its proper divisors (31991098244).

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

29431809148 is a wasteful number, since it uses less digits than its factorization.

29431809148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45701601 (or 45701599 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 49.

The spelling of 29431809148 in words is "twenty-nine billion, four hundred thirty-one million, eight hundred nine thousand, one hundred forty-eight".