283378731480 has 192 divisors, whose sum is σ = 997021509120. Its totient is φ = 69389337600.

The previous prime is 283378731479. The next prime is 283378731487. The reversal of 283378731480 is 84137873382.

It is a happy number.

283378731480 is a `hidden beast` number, since 2 + 83 + 3 + 7 + 87 + 3 + 1 + 480 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283378731487) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 735370 + ... + 1052390.

It is an arithmetic number, because the mean of its divisors is an integer number (5192820360).

Almost surely, 2^283378731480 is an apocalyptic number.

283378731480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 283378731480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (498510754560).

283378731480 is an abundant number, since it is smaller than the sum of its proper divisors (713642777640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

283378731480 is a wasteful number, since it uses less digits than its factorization.

283378731480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317242 (or 317235 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

The spelling of 283378731480 in words is "two hundred eighty-three billion, three hundred seventy-eight million, seven hundred thirty-one thousand, four hundred eighty".