83478257152 has 20 divisors (see below), whose sum is σ = 166793471856. Its totient is φ = 41739128320.

The previous prime is 83478257119. The next prime is 83478257167. The reversal of 83478257152 is 25175287438.

It is a happy number.

It is a super-2 number, since 2×83478257152² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 83478257152.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81521224 + ... + 81522247.

Almost surely, 2^83478257152 is an apocalyptic number.

It is an amenable number.

83478257152 is a deficient number, since it is larger than the sum of its proper divisors (83315214704).

83478257152 is an equidigital number, since it uses as much as digits as its factorization.

83478257152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163043489 (or 163043473 counting only the distinct ones).

The product of its digits is 3763200, while the sum is 52.

The spelling of 83478257152 in words is "eighty-three billion, four hundred seventy-eight million, two hundred fifty-seven thousand, one hundred fifty-two".