21060093474 has 360 divisors, whose sum is σ = 60114472704. Its totient is φ = 5478580800.

The previous prime is 21060093437. The next prime is 21060093541. The reversal of 21060093474 is 47439006012.

21060093474 is a `hidden beast` number, since 2 + 1 + 0 + 600 + 9 + 3 + 47 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 345247404 + ... + 345247464.

Almost surely, 2^21060093474 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21060093474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30057236352).

21060093474 is an abundant number, since it is smaller than the sum of its proper divisors (39054379230).

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

21060093474 is a wasteful number, since it uses less digits than its factorization.

21060093474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

Adding to 21060093474 its reverse (47439006012), we get a palindrome (68499099486).

The spelling of 21060093474 in words is "twenty-one billion, sixty million, ninety-three thousand, four hundred seventy-four".