83432788723438 has 32 divisors (see below), whose sum is σ = 156030983665920. Its totient is φ = 32506107711360.

The previous prime is 83432788723421. The next prime is 83432788723451.

83432788723438 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×83432788723438² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29643753 + ... + 32336011.

It is an arithmetic number, because the mean of its divisors is an integer number (4875968239560).

Almost surely, 2^{83432788723438} is an apocalyptic number.

83432788723438 is a deficient number, since it is larger than the sum of its proper divisors (72598194942482).

83432788723438 is a wasteful number, since it uses less digits than its factorization.

83432788723438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2893512.

The product of its digits is 1040449536, while the sum is 70.

The spelling of 83432788723438 in words is "eighty-three trillion, four hundred thirty-two billion, seven hundred eighty-eight million, seven hundred twenty-three thousand, four hundred thirty-eight".