7385278085 has 4 divisors (see below), whose sum is σ = 8862333708. Its totient is φ = 5908222464.

The previous prime is 7385278073. The next prime is 7385278099. The reversal of 7385278085 is 5808725837.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5808725837 = 101 ⋅57512137.

It can be written as a sum of positive squares in 2 ways, for example, as 4067633284 + 3317644801 = 63778^2 + 57599^2 .

It is a cyclic number.

It is not a de Polignac number, because 7385278085 - 2⁸ = 7385277829 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, 738527804 + ... + 738527813.

It is an arithmetic number, because the mean of its divisors is an integer number (2215583427).

Almost surely, 2^7385278085 is an apocalyptic number.

It is an amenable number.

7385278085 is a deficient number, since it is larger than the sum of its proper divisors (1477055623).

7385278085 is a wasteful number, since it uses less digits than its factorization.

7385278085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477055622.

The product of its (nonzero) digits is 3763200, while the sum is 53.

The square root of 7385278085 is about 85937.6406762485. The cubic root of 7385278085 is about 1947.4020265754.

It can be divided in two parts, 738527 and 8085, that multiplied together give a palindrome (5970990795).

The spelling of 7385278085 in words is "seven billion, three hundred eighty-five million, two hundred seventy-eight thousand, eighty-five".