42147528501 has 16 divisors (see below), whose sum is σ = 61285602560. Its totient is φ = 25608623040.

The previous prime is 42147528473. The next prime is 42147528509. The reversal of 42147528501 is 10582574124.

It is not a de Polignac number, because 42147528501 - 2⁵ = 42147528469 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42147528501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42147528509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6836830 + ... + 6842991.

It is an arithmetic number, because the mean of its divisors is an integer number (3830350160).

Almost surely, 2^42147528501 is an apocalyptic number.

It is an amenable number.

42147528501 is a deficient number, since it is larger than the sum of its proper divisors (19138074059).

42147528501 is a wasteful number, since it uses less digits than its factorization.

42147528501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13679916.

The product of its (nonzero) digits is 89600, while the sum is 39.

The spelling of 42147528501 in words is "forty-two billion, one hundred forty-seven million, five hundred twenty-eight thousand, five hundred one".