1622793871440 has 1920 divisors, whose sum is σ = 7347129753600. Its totient is φ = 324188282880.

The previous prime is 1622793871397. The next prime is 1622793871471. The reversal of 1622793871440 is 441783972261.

1622793871440 is a `hidden beast` number, since 1 + 62 + 2 + 79 + 3 + 8 + 71 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 1724541370 + ... + 1724542310.

It is an arithmetic number, because the mean of its divisors is an integer number (3826630080).

Almost surely, 2^{1622793871440} is an apocalyptic number.

1622793871440 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 1622793871440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3673564876800).

1622793871440 is an abundant number, since it is smaller than the sum of its proper divisors (5724335882160).

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

1622793871440 is a wasteful number, since it uses less digits than its factorization.

1622793871440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047 (or 1029 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 1622793871440 in words is "one trillion, six hundred twenty-two billion, seven hundred ninety-three million, eight hundred seventy-one thousand, four hundred forty".