42515928043 has 2 divisors, whose sum is σ = 42515928044. Its totient is φ = 42515928042.

The previous prime is 42515927983. The next prime is 42515928067. The reversal of 42515928043 is 34082951524.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42515928043 is a prime.

It is not a weakly prime, because it can be changed into another prime (42515928943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21257964021 + 21257964022.

It is an arithmetic number, because the mean of its divisors is an integer number (21257964022).

Almost surely, 2^42515928043 is an apocalyptic number.

42515928043 is a deficient number, since it is larger than the sum of its proper divisors (1).

42515928043 is an equidigital number, since it uses as much as digits as its factorization.

42515928043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 42515928043 in words is "forty-two billion, five hundred fifteen million, nine hundred twenty-eight thousand, forty-three".