21467745430146 has 32 divisors (see below), whose sum is σ = 47781704995200. Its totient is φ = 7144574537520.

The previous prime is 21467745430129. The next prime is 21467745430207. The reversal of 21467745430146 is 64103454776412.

21467745430146 is a `hidden beast` number, since 2 + 1 + 4 + 67 + 7 + 4 + 5 + 430 + 146 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 21467745430092 and 21467745430101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314982441 + ... + 315050588.

It is an arithmetic number, because the mean of its divisors is an integer number (1493178281100).

Almost surely, 2^{21467745430146} is an apocalyptic number.

21467745430146 is an abundant number, since it is smaller than the sum of its proper divisors (26313959565054).

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

21467745430146 is a wasteful number, since it uses less digits than its factorization.

21467745430146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630033671 (or 630033665 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 54.

The spelling of 21467745430146 in words is "twenty-one trillion, four hundred sixty-seven billion, seven hundred forty-five million, four hundred thirty thousand, one hundred forty-six".