85274156797405 has 4 divisors (see below), whose sum is σ = 102328988156892. Its totient is φ = 68219325437920.

The previous prime is 85274156797339. The next prime is 85274156797471. The reversal of 85274156797405 is 50479765147258.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (85274156797339) and next prime (85274156797471).

It can be written as a sum of positive squares in 2 ways, for example, as 59750209990276 + 25523946807129 = 7729826^2 + 5052123^2 .

It is not a de Polignac number, because 85274156797405 - 2²¹ = 85274154700253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8527415679736 + ... + 8527415679745.

It is an arithmetic number, because the mean of its divisors is an integer number (25582247039223).

Almost surely, 2^{85274156797405} is an apocalyptic number.

It is an amenable number.

85274156797405 is a deficient number, since it is larger than the sum of its proper divisors (17054831359487).

85274156797405 is a wasteful number, since it uses less digits than its factorization.

85274156797405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17054831359486.

The product of its (nonzero) digits is 592704000, while the sum is 70.

The spelling of 85274156797405 in words is "eighty-five trillion, two hundred seventy-four billion, one hundred fifty-six million, seven hundred ninety-seven thousand, four hundred five".