42686006501 has 2 divisors, whose sum is σ = 42686006502. Its totient is φ = 42686006500.

The previous prime is 42686006483. The next prime is 42686006527. The reversal of 42686006501 is 10560068624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42364342276 + 321664225 = 205826^2 + 17935^2 .

It is a cyclic number.

It is not a de Polignac number, because 42686006501 - 2⁶ = 42686006437 is a prime.

It is a super-3 number, since 3×42686006501³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42686006581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21343003250 + 21343003251.

It is an arithmetic number, because the mean of its divisors is an integer number (21343003251).

Almost surely, 2^42686006501 is an apocalyptic number.

It is an amenable number.

42686006501 is a deficient number, since it is larger than the sum of its proper divisors (1).

42686006501 is an equidigital number, since it uses as much as digits as its factorization.

42686006501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 42686006501 in words is "forty-two billion, six hundred eighty-six million, six thousand, five hundred one".