83787478738 has 8 divisors (see below), whose sum is σ = 132296019120. Its totient is φ = 39688805700.

The previous prime is 83787478727. The next prime is 83787478741.

83787478738 is nontrivially palindromic in base 10.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1102466788 + ... + 1102466863.

It is an arithmetic number, because the mean of its divisors is an integer number (16537002390).

Almost surely, 2^83787478738 is an apocalyptic number.

83787478738 is a deficient number, since it is larger than the sum of its proper divisors (48508540382).

83787478738 is a wasteful number, since it uses less digits than its factorization.

83787478738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2204933672.

The product of its digits is 354041856, while the sum is 70.

The spelling of 83787478738 in words is "eighty-three billion, seven hundred eighty-seven million, four hundred seventy-eight thousand, seven hundred thirty-eight".