834391383487 has 8 divisors (see below), whose sum is σ = 878436379760. Its totient is φ = 790359353280.

The previous prime is 834391383461. The next prime is 834391383493. The reversal of 834391383487 is 784383193438.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 834391383487 - 2³⁹ = 284635569599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (834391333487) 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, 3109278 + ... + 3366955.

It is an arithmetic number, because the mean of its divisors is an integer number (109804547470).

Almost surely, 2^834391383487 is an apocalyptic number.

834391383487 is a deficient number, since it is larger than the sum of its proper divisors (44044996273).

834391383487 is a wasteful number, since it uses less digits than its factorization.

834391383487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6483033.

The product of its digits is 41803776, while the sum is 61.

The spelling of 834391383487 in words is "eight hundred thirty-four billion, three hundred ninety-one million, three hundred eighty-three thousand, four hundred eighty-seven".