83781148056047 has 8 divisors (see below), whose sum is σ = 94974580792560. Its totient is φ = 73266105182400.

The previous prime is 83781148056031. The next prime is 83781148056103. The reversal of 83781148056047 is 74065084118738.

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

It is not a de Polignac number, because 83781148056047 - 2⁴ = 83781148056031 is a prime.

It is a super-3 number, since 3×83781148056047³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83781148056247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169597465454 + ... + 169597465947.

It is an arithmetic number, because the mean of its divisors is an integer number (11871822599070).

Almost surely, 2^{83781148056047} is an apocalyptic number.

83781148056047 is a deficient number, since it is larger than the sum of its proper divisors (11193432736513).

83781148056047 is a wasteful number, since it uses less digits than its factorization.

83781148056047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339194931433.

The product of its (nonzero) digits is 36126720, while the sum is 62.

The spelling of 83781148056047 in words is "eighty-three trillion, seven hundred eighty-one billion, one hundred forty-eight million, fifty-six thousand, forty-seven".