85604478007 has 2 divisors, whose sum is σ = 85604478008. Its totient is φ = 85604478006.

The previous prime is 85604477957. The next prime is 85604478013. The reversal of 85604478007 is 70087440658.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85604478007 - 2⁷ = 85604477879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85604478607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42802239003 + 42802239004.

It is an arithmetic number, because the mean of its divisors is an integer number (42802239004).

Almost surely, 2^85604478007 is an apocalyptic number.

85604478007 is a deficient number, since it is larger than the sum of its proper divisors (1).

85604478007 is an equidigital number, since it uses as much as digits as its factorization.

85604478007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1505280, while the sum is 49.

The spelling of 85604478007 in words is "eighty-five billion, six hundred four million, four hundred seventy-eight thousand, seven".