42402647039 has 2 divisors, whose sum is σ = 42402647040. Its totient is φ = 42402647038.

The previous prime is 42402647029. The next prime is 42402647071. The reversal of 42402647039 is 93074620424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42402647039 - 2¹⁶ = 42402581503 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42402646987 and 42402647005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42402647029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21201323519 + 21201323520.

It is an arithmetic number, because the mean of its divisors is an integer number (21201323520).

Almost surely, 2^42402647039 is an apocalyptic number.

42402647039 is a deficient number, since it is larger than the sum of its proper divisors (1).

42402647039 is an equidigital number, since it uses as much as digits as its factorization.

42402647039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 41.

The spelling of 42402647039 in words is "forty-two billion, four hundred two million, six hundred forty-seven thousand, thirty-nine".