29042191280 has 40 divisors (see below), whose sum is σ = 69701265024. Its totient is φ = 11242137600.

The previous prime is 29042191231. The next prime is 29042191291. The reversal of 29042191280 is 8219124092.

It is a tau number, because it is divible by the number of its divisors (40).

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, 5852801 + ... + 5857760.

Almost surely, 2^29042191280 is an apocalyptic number.

29042191280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29042191280 is an abundant number, since it is smaller than the sum of its proper divisors (40659073744).

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

29042191280 is a wasteful number, since it uses less digits than its factorization.

29042191280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11710605 (or 11710599 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

The spelling of 29042191280 in words is "twenty-nine billion, forty-two million, one hundred ninety-one thousand, two hundred eighty".