21427150076 has 24 divisors (see below), whose sum is σ = 38796271920. Its totient is φ = 10342610432.

The previous prime is 21427150009. The next prime is 21427150109. The reversal of 21427150076 is 67005172412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1407980 + ... + 1423116.

It is an arithmetic number, because the mean of its divisors is an integer number (1616511330).

Almost surely, 2^21427150076 is an apocalyptic number.

It is an amenable number.

21427150076 is a deficient number, since it is larger than the sum of its proper divisors (17369121844).

21427150076 is a wasteful number, since it uses less digits than its factorization.

21427150076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27373 (or 27371 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The spelling of 21427150076 in words is "twenty-one billion, four hundred twenty-seven million, one hundred fifty thousand, seventy-six".