83657477475638 has 8 divisors (see below), whose sum is σ = 136894054051080. Its totient is φ = 38026126125280.

The previous prime is 83657477475629. The next prime is 83657477475641.

It is a happy number.

83657477475638 is nontrivially palindromic in base 10.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1901306306243 + ... + 1901306306286.

It is an arithmetic number, because the mean of its divisors is an integer number (17111756756385).

Almost surely, 2^{83657477475638} is an apocalyptic number.

83657477475638 is a deficient number, since it is larger than the sum of its proper divisors (53236576575442).

83657477475638 is a wasteful number, since it uses less digits than its factorization.

83657477475638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3802612612542.

The product of its digits is 19914854400, while the sum is 80.

The spelling of 83657477475638 in words is "eighty-three trillion, six hundred fifty-seven billion, four hundred seventy-seven million, four hundred seventy-five thousand, six hundred thirty-eight".