29190431268 has 48 divisors (see below), whose sum is σ = 75775277760. Its totient is φ = 9717751872.

The previous prime is 29190431267. The next prime is 29190431287. The reversal of 29190431268 is 86213409192.

29190431268 is a `hidden beast` number, since 2 + 9 + 190 + 431 + 26 + 8 = 666.

It is a super-2 number, since 2×29190431268² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29190431267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86721 + ... + 256712.

It is an arithmetic number, because the mean of its divisors is an integer number (1578651620).

Almost surely, 2^29190431268 is an apocalyptic number.

It is an amenable number.

29190431268 is an abundant number, since it is smaller than the sum of its proper divisors (46584846492).

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

29190431268 is a wasteful number, since it uses less digits than its factorization.

29190431268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344233 (or 344225 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 29190431268 in words is "twenty-nine billion, one hundred ninety million, four hundred thirty-one thousand, two hundred sixty-eight".