21348262576 has 40 divisors (see below), whose sum is σ = 41499580464. Its totient is φ = 10638762240.

The previous prime is 21348262549. The next prime is 21348262577. The reversal of 21348262576 is 67526284312.

It is not an unprimeable number, because it can be changed into a prime (21348262577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7218090 + ... + 7221046.

Almost surely, 2^21348262576 is an apocalyptic number.

It is an amenable number.

21348262576 is a deficient number, since it is larger than the sum of its proper divisors (20151317888).

21348262576 is a wasteful number, since it uses less digits than its factorization.

21348262576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4309 (or 4303 counting only the distinct ones).

The product of its digits is 967680, while the sum is 46.

The spelling of 21348262576 in words is "twenty-one billion, three hundred forty-eight million, two hundred sixty-two thousand, five hundred seventy-six".