83070778843 has 16 divisors (see below), whose sum is σ = 89945056096. Its totient is φ = 76266696960.

The previous prime is 83070778829. The next prime is 83070778849. The reversal of 83070778843 is 34887707038.

It is a cyclic number.

It is not a de Polignac number, because 83070778843 - 2²¹ = 83068681691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83070778849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1969471 + ... + 2011207.

It is an arithmetic number, because the mean of its divisors is an integer number (5621566006).

Almost surely, 2^83070778843 is an apocalyptic number.

83070778843 is a deficient number, since it is larger than the sum of its proper divisors (6874277253).

83070778843 is a wasteful number, since it uses less digits than its factorization.

83070778843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42574.

The product of its (nonzero) digits is 6322176, while the sum is 55.

The spelling of 83070778843 in words is "eighty-three billion, seventy million, seven hundred seventy-eight thousand, eight hundred forty-three".