42515927983 has 2 divisors, whose sum is σ = 42515927984. Its totient is φ = 42515927982.

The previous prime is 42515927981. The next prime is 42515928043. The reversal of 42515927983 is 38972951524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42515927983 - 2¹ = 42515927981 is a prime.

Together with 42515927981, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42515927981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21257963991 + 21257963992.

It is an arithmetic number, because the mean of its divisors is an integer number (21257963992).

Almost surely, 2^42515927983 is an apocalyptic number.

42515927983 is a deficient number, since it is larger than the sum of its proper divisors (1).

42515927983 is an equidigital number, since it uses as much as digits as its factorization.

42515927983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5443200, while the sum is 55.

The spelling of 42515927983 in words is "forty-two billion, five hundred fifteen million, nine hundred twenty-seven thousand, nine hundred eighty-three".