1622725671840 has 384 divisors, whose sum is σ = 6564716347392. Its totient is φ = 327491112960.

The previous prime is 1622725671751. The next prime is 1622725671881. The reversal of 1622725671840 is 481765272261.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 197025 + ... + 1812255.

It is an arithmetic number, because the mean of its divisors is an integer number (17095615488).

Almost surely, 2^{1622725671840} is an apocalyptic number.

1622725671840 is a gapful number since it is divisible by the number (10) 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 1622725671840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3282358173696).

1622725671840 is an abundant number, since it is smaller than the sum of its proper divisors (4941990675552).

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

1622725671840 is a wasteful number, since it uses less digits than its factorization.

1622725671840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615292 (or 1615284 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 51.

The spelling of 1622725671840 in words is "one trillion, six hundred twenty-two billion, seven hundred twenty-five million, six hundred seventy-one thousand, eight hundred forty".