42901129447 has 4 divisors (see below), whose sum is σ = 46801232136. Its totient is φ = 39001026760.

The previous prime is 42901129393. The next prime is 42901129459. The reversal of 42901129447 is 74492110924.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42901129447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42901129487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1950051328 + ... + 1950051349.

It is an arithmetic number, because the mean of its divisors is an integer number (11700308034).

Almost surely, 2^42901129447 is an apocalyptic number.

42901129447 is a deficient number, since it is larger than the sum of its proper divisors (3900102689).

42901129447 is a wasteful number, since it uses less digits than its factorization.

42901129447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3900102688.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 42901129447 in words is "forty-two billion, nine hundred one million, one hundred twenty-nine thousand, four hundred forty-seven".