83478338461 has 4 divisors (see below), whose sum is σ = 95403815392. Its totient is φ = 71552861532.

The previous prime is 83478338413. The next prime is 83478338473. The reversal of 83478338461 is 16483387438.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83478338461 - 2¹¹ = 83478336413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83478338261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5962738455 + ... + 5962738468.

It is an arithmetic number, because the mean of its divisors is an integer number (23850953848).

Almost surely, 2^83478338461 is an apocalyptic number.

It is an amenable number.

83478338461 is a deficient number, since it is larger than the sum of its proper divisors (11925476931).

83478338461 is a wasteful number, since it uses less digits than its factorization.

83478338461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11925476930.

The product of its digits is 9289728, while the sum is 55.

The spelling of 83478338461 in words is "eighty-three billion, four hundred seventy-eight million, three hundred thirty-eight thousand, four hundred sixty-one".