83478257153 has 4 divisors (see below), whose sum is σ = 83496187140. Its totient is φ = 83460327168.

The previous prime is 83478257119. The next prime is 83478257167. The reversal of 83478257153 is 35175287438.

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

It can be written as a sum of positive squares in 2 ways, for example, as 43194555889 + 40283701264 = 207833^2 + 200708^2 .

It is a cyclic number.

It is not a de Polignac number, because 83478257153 - 2¹⁸ = 83477995009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83478257095 and 83478257104.

It is not an unprimeable number, because it can be changed into a prime (83478257183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8958008 + ... + 8967321.

It is an arithmetic number, because the mean of its divisors is an integer number (20874046785).

Almost surely, 2^83478257153 is an apocalyptic number.

It is an amenable number.

83478257153 is a deficient number, since it is larger than the sum of its proper divisors (17929987).

83478257153 is a wasteful number, since it uses less digits than its factorization.

83478257153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17929986.

The product of its digits is 5644800, while the sum is 53.

The spelling of 83478257153 in words is "eighty-three billion, four hundred seventy-eight million, two hundred fifty-seven thousand, one hundred fifty-three".