87375847639 has 2 divisors, whose sum is σ = 87375847640. Its totient is φ = 87375847638.

The previous prime is 87375847613. The next prime is 87375847667. The reversal of 87375847639 is 93674857378.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87375847639 - 2¹⁵ = 87375814871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87375847609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43687923819 + 43687923820.

It is an arithmetic number, because the mean of its divisors is an integer number (43687923820).

Almost surely, 2^87375847639 is an apocalyptic number.

87375847639 is a deficient number, since it is larger than the sum of its proper divisors (1).

87375847639 is an equidigital number, since it uses as much as digits as its factorization.

87375847639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 213373440, while the sum is 67.

The spelling of 87375847639 in words is "eighty-seven billion, three hundred seventy-five million, eight hundred forty-seven thousand, six hundred thirty-nine".