1628777703168 has 432 divisors, whose sum is σ = 6163130937600. Its totient is φ = 400792043520.

The previous prime is 1628777703151. The next prime is 1628777703209. The reversal of 1628777703168 is 8613077778261.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3129148 + ... + 3612356.

It is an arithmetic number, because the mean of its divisors is an integer number (14266506800).

Almost surely, 2^{1628777703168} is an apocalyptic number.

1628777703168 is a gapful number since it is divisible by the number (18) 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 1628777703168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3081565468800).

1628777703168 is an abundant number, since it is smaller than the sum of its proper divisors (4534353234432).

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

1628777703168 is a wasteful number, since it uses less digits than its factorization.

1628777703168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483268 (or 483251 counting only the distinct ones).

The product of its (nonzero) digits is 33191424, while the sum is 63.

The spelling of 1628777703168 in words is "one trillion, six hundred twenty-eight billion, seven hundred seventy-seven million, seven hundred three thousand, one hundred sixty-eight".