21494847150 has 144 divisors (see below), whose sum is σ = 68900701680. Its totient is φ = 4913092800.

The previous prime is 21494847119. The next prime is 21494847163. The reversal of 21494847150 is 5174849412.

21494847150 is a `hidden beast` number, since 2 + 1 + 494 + 8 + 4 + 7 + 150 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 21494847096 and 21494847105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 96321 + ... + 228620.

It is an arithmetic number, because the mean of its divisors is an integer number (478477095).

Almost surely, 2^21494847150 is an apocalyptic number.

21494847150 is an abundant number, since it is smaller than the sum of its proper divisors (47405854530).

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

21494847150 is a wasteful number, since it uses less digits than its factorization.

21494847150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324976 (or 324958 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 21494847150 in words is "twenty-one billion, four hundred ninety-four million, eight hundred forty-seven thousand, one hundred fifty".