85701391503 has 32 divisors (see below), whose sum is σ = 140683339776. Its totient is φ = 45190614528.

The previous prime is 85701391499. The next prime is 85701391543. The reversal of 85701391503 is 30519310758.

It is a Cunningham number, because it is equal to 292748²-1.

It is not a de Polignac number, because 85701391503 - 2² = 85701391499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85701391543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 829450 + ... + 927032.

It is an arithmetic number, because the mean of its divisors is an integer number (4396354368).

Almost surely, 2^85701391503 is an apocalyptic number.

85701391503 is a deficient number, since it is larger than the sum of its proper divisors (54981948273).

85701391503 is a wasteful number, since it uses less digits than its factorization.

85701391503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100823.

The product of its (nonzero) digits is 113400, while the sum is 42.

The spelling of 85701391503 in words is "eighty-five billion, seven hundred one million, three hundred ninety-one thousand, five hundred three".