85400088507 has 16 divisors (see below), whose sum is σ = 128042974080. Its totient is φ = 56247446376.

The previous prime is 85400088503. The next prime is 85400088509. The reversal of 85400088507 is 70588000458.

It is not a de Polignac number, because 85400088507 - 2² = 85400088503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85400088503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19051773 + ... + 19056254.

It is an arithmetic number, because the mean of its divisors is an integer number (8002685880).

Almost surely, 2^85400088507 is an apocalyptic number.

85400088507 is a deficient number, since it is larger than the sum of its proper divisors (42642885573).

85400088507 is a wasteful number, since it uses less digits than its factorization.

85400088507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38108119 (or 38108113 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 45.

The spelling of 85400088507 in words is "eighty-five billion, four hundred million, eighty-eight thousand, five hundred seven".