40429742487 has 8 divisors (see below), whose sum is σ = 53972795520. Its totient is φ = 26919925560.

The previous prime is 40429742459. The next prime is 40429742557. The reversal of 40429742487 is 78424792404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40429742487 - 2¹⁰ = 40429741463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40429702487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8306187 + ... + 8311052.

It is an arithmetic number, because the mean of its divisors is an integer number (6746599440).

Almost surely, 2^40429742487 is an apocalyptic number.

40429742487 is a deficient number, since it is larger than the sum of its proper divisors (13543053033).

40429742487 is a wasteful number, since it uses less digits than its factorization.

40429742487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16618053.

The product of its (nonzero) digits is 3612672, while the sum is 51.

The spelling of 40429742487 in words is "forty billion, four hundred twenty-nine million, seven hundred forty-two thousand, four hundred eighty-seven".