87672421423 has 2 divisors, whose sum is σ = 87672421424. Its totient is φ = 87672421422.

The previous prime is 87672421409. The next prime is 87672421451. The reversal of 87672421423 is 32412427678.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87672421423 - 2⁵ = 87672421391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87672421523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43836210711 + 43836210712.

It is an arithmetic number, because the mean of its divisors is an integer number (43836210712).

Almost surely, 2^87672421423 is an apocalyptic number.

87672421423 is a deficient number, since it is larger than the sum of its proper divisors (1).

87672421423 is an equidigital number, since it uses as much as digits as its factorization.

87672421423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 903168, while the sum is 46.

The spelling of 87672421423 in words is "eighty-seven billion, six hundred seventy-two million, four hundred twenty-one thousand, four hundred twenty-three".