29899251396 has 243 divisors, whose sum is σ = 92423070831. Its totient is φ = 8125574688.

The previous prime is 29899251391. The next prime is 29899251397. The reversal of 29899251396 is 69315299892.

The square root of 29899251396 is 172914.

It is a perfect power (a square), and thus also a powerful number.

29899251396 is a `hidden beast` number, since 29 + 8 + 9 + 9 + 2 + 513 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (29899251391) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 167034835 + ... + 167035013.

Almost surely, 2^29899251396 is an apocalyptic number.

29899251396 is the 172914-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29899251396

29899251396 is an abundant number, since it is smaller than the sum of its proper divisors (62523819435).

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

29899251396 is a wasteful number, since it uses less digits than its factorization.

29899251396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 214 counting only the distinct ones).

The product of its digits is 18895680, while the sum is 63.

The spelling of 29899251396 in words is "twenty-nine billion, eight hundred ninety-nine million, two hundred fifty-one thousand, three hundred ninety-six".