83078873786405 has 64 divisors (see below), whose sum is σ = 120103226081280. Its totient is φ = 53936173057536.

The previous prime is 83078873786387. The next prime is 83078873786567. The reversal of 83078873786405 is 50468737887038.

It is not a de Polignac number, because 83078873786405 - 2¹² = 83078873782309 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 170810801 + ... + 171296489.

It is an arithmetic number, because the mean of its divisors is an integer number (1876612907520).

Almost surely, 2^{83078873786405} is an apocalyptic number.

It is an amenable number.

83078873786405 is a deficient number, since it is larger than the sum of its proper divisors (37024352294875).

83078873786405 is a wasteful number, since it uses less digits than its factorization.

83078873786405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487890.

The product of its (nonzero) digits is 1517322240, while the sum is 74.

The spelling of 83078873786405 in words is "eighty-three trillion, seventy-eight billion, eight hundred seventy-three million, seven hundred eighty-six thousand, four hundred five".