22461830478 has 12 divisors (see below), whose sum is σ = 48667299408. Its totient is φ = 7487276820.

The previous prime is 22461830471. The next prime is 22461830617. The reversal of 22461830478 is 87403816422.

It is a happy number.

22461830478 is a `hidden beast` number, since 2 + 24 + 618 + 3 + 0 + 4 + 7 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22461830471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 623939718 + ... + 623939753.

It is an arithmetic number, because the mean of its divisors is an integer number (4055608284).

Almost surely, 2^22461830478 is an apocalyptic number.

22461830478 is an abundant number, since it is smaller than the sum of its proper divisors (26205468930).

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

22461830478 is a wasteful number, since it uses less digits than its factorization.

22461830478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247879479 (or 1247879476 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 22461830478 in words is "twenty-two billion, four hundred sixty-one million, eight hundred thirty thousand, four hundred seventy-eight".