3885387862780 has 48 divisors (see below), whose sum is σ = 8522618569920. Its totient is φ = 1485994987008.

The previous prime is 3885387862729. The next prime is 3885387862787. The reversal of 3885387862780 is 872687835883.

3885387862780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3885387862780² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3885387862787) 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, 32459409 + ... + 32578888.

It is an arithmetic number, because the mean of its divisors is an integer number (177554553540).

Almost surely, 2^{3885387862780} is an apocalyptic number.

It is an amenable number.

3885387862780 is an abundant number, since it is smaller than the sum of its proper divisors (4637230707140).

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

3885387862780 is a wasteful number, since it uses less digits than its factorization.

3885387862780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65038438 (or 65038436 counting only the distinct ones).

The product of its (nonzero) digits is 867041280, while the sum is 73.

The spelling of 3885387862780 in words is "three trillion, eight hundred eighty-five billion, three hundred eighty-seven million, eight hundred sixty-two thousand, seven hundred eighty".