42672578671 has 2 divisors, whose sum is σ = 42672578672. Its totient is φ = 42672578670.

The previous prime is 42672578659. The next prime is 42672578677. The reversal of 42672578671 is 17687527624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42672578671 - 2⁹ = 42672578159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42672578677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21336289335 + 21336289336.

It is an arithmetic number, because the mean of its divisors is an integer number (21336289336).

Almost surely, 2^42672578671 is an apocalyptic number.

42672578671 is a deficient number, since it is larger than the sum of its proper divisors (1).

42672578671 is an equidigital number, since it uses as much as digits as its factorization.

42672578671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7902720, while the sum is 55.

The spelling of 42672578671 in words is "forty-two billion, six hundred seventy-two million, five hundred seventy-eight thousand, six hundred seventy-one".