42528736251 has 6 divisors (see below), whose sum is σ = 61430396820. Its totient is φ = 28352490828.

The previous prime is 42528736249. The next prime is 42528736259. The reversal of 42528736251 is 15263782524.

42528736251 is a `hidden beast` number, since 4 + 2 + 5 + 287 + 362 + 5 + 1 = 666.

It is not a de Polignac number, because 42528736251 - 2¹ = 42528736249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42528736197 and 42528736206.

It is not an unprimeable number, because it can be changed into a prime (42528736259) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2362707561 + ... + 2362707578.

It is an arithmetic number, because the mean of its divisors is an integer number (10238399470).

Almost surely, 2^42528736251 is an apocalyptic number.

42528736251 is a deficient number, since it is larger than the sum of its proper divisors (18901660569).

42528736251 is a wasteful number, since it uses less digits than its factorization.

42528736251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4725415145 (or 4725415142 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The spelling of 42528736251 in words is "forty-two billion, five hundred twenty-eight million, seven hundred thirty-six thousand, two hundred fifty-one".