83978025662 has 8 divisors (see below), whose sum is σ = 126873276600. Its totient is φ = 41686933464.

The previous prime is 83978025613. The next prime is 83978025667. The reversal of 83978025662 is 26652087938.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 83978025598 and 83978025607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83978025667) 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, 151039337 + ... + 151039892.

It is an arithmetic number, because the mean of its divisors is an integer number (15859159575).

Almost surely, 2^83978025662 is an apocalyptic number.

83978025662 is a deficient number, since it is larger than the sum of its proper divisors (42895250938).

83978025662 is a wasteful number, since it uses less digits than its factorization.

83978025662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302079370.

The product of its (nonzero) digits is 8709120, while the sum is 56.

The spelling of 83978025662 in words is "eighty-three billion, nine hundred seventy-eight million, twenty-five thousand, six hundred sixty-two".