42619890839 has 2 divisors, whose sum is σ = 42619890840. Its totient is φ = 42619890838.

The previous prime is 42619890827. The next prime is 42619890877. The reversal of 42619890839 is 93809891624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42619890839 - 2⁴ = 42619890823 is a prime.

It is a super-2 number, since 2×42619890839² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42619890739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21309945419 + 21309945420.

It is an arithmetic number, because the mean of its divisors is an integer number (21309945420).

Almost surely, 2^42619890839 is an apocalyptic number.

42619890839 is a deficient number, since it is larger than the sum of its proper divisors (1).

42619890839 is an equidigital number, since it uses as much as digits as its factorization.

42619890839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6718464, while the sum is 59.

The spelling of 42619890839 in words is "forty-two billion, six hundred nineteen million, eight hundred ninety thousand, eight hundred thirty-nine".