3828117780 has 48 divisors (see below), whose sum is σ = 11909701440. Its totient is φ = 1020831264.

The previous prime is 3828117779. The next prime is 3828117781. The reversal of 3828117780 is 877118283.

It is an interprime number because it is at equal distance from previous prime (3828117779) and next prime (3828117781).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3828117781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3544014 + ... + 3545093.

It is an arithmetic number, because the mean of its divisors is an integer number (248118780).

Almost surely, 2^3828117780 is an apocalyptic number.

3828117780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3828117780 is an abundant number, since it is smaller than the sum of its proper divisors (8081583660).

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

3828117780 is a wasteful number, since it uses less digits than its factorization.

3828117780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7089125 (or 7089117 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 45.

The square root of 3828117780 is about 61871.7850073844. The cubic root of 3828117780 is about 1564.3302029542.

The spelling of 3828117780 in words is "three billion, eight hundred twenty-eight million, one hundred seventeen thousand, seven hundred eighty".