83781248451 has 16 divisors (see below), whose sum is σ = 111989402496. Its totient is φ = 55713696896.

The previous prime is 83781248431. The next prime is 83781248459. The reversal of 83781248451 is 15484218738.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 83781248451 - 2¹⁰ = 83781247427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83781248394 and 83781248403.

It is not an unprimeable number, because it can be changed into a prime (83781248459) 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, 8438176 + ... + 8448098.

It is an arithmetic number, because the mean of its divisors is an integer number (6999337656).

Almost surely, 2^83781248451 is an apocalyptic number.

83781248451 is a deficient number, since it is larger than the sum of its proper divisors (28208154045).

83781248451 is a wasteful number, since it uses less digits than its factorization.

83781248451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16722.

The product of its digits is 1720320, while the sum is 51.

The spelling of 83781248451 in words is "eighty-three billion, seven hundred eighty-one million, two hundred forty-eight thousand, four hundred fifty-one".