1622471447955 has 16 divisors (see below), whose sum is σ = 2597861736864. Its totient is φ = 864682298880.

The previous prime is 1622471447939. The next prime is 1622471447959. The reversal of 1622471447955 is 5597441742261.

It is not a de Polignac number, because 1622471447955 - 2⁴ = 1622471447939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1622471447895 and 1622471447904.

It is not an unprimeable number, because it can be changed into a prime (1622471447959) 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, 39716824 + ... + 39757653.

It is an arithmetic number, because the mean of its divisors is an integer number (162366358554).

Almost surely, 2^{1622471447955} is an apocalyptic number.

1622471447955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1622471447955 is a deficient number, since it is larger than the sum of its proper divisors (975390288909).

1622471447955 is a wasteful number, since it uses less digits than its factorization.

1622471447955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79475846.

The product of its digits is 16934400, while the sum is 57.

The spelling of 1622471447955 in words is "one trillion, six hundred twenty-two billion, four hundred seventy-one million, four hundred forty-seven thousand, nine hundred fifty-five".