21476854354350 has 48 divisors (see below), whose sum is σ = 53269186379760. Its totient is φ = 5726452819200.

The previous prime is 21476854354343. The next prime is 21476854354451. The reversal of 21476854354350 is 5345345867412.

It is a super-2 number, since 2×21476854354350² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7636881 + ... + 10063580.

It is an arithmetic number, because the mean of its divisors is an integer number (1109774716245).

Almost surely, 2^{21476854354350} is an apocalyptic number.

21476854354350 is an abundant number, since it is smaller than the sum of its proper divisors (31792332025410).

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

21476854354350 is a wasteful number, since it uses less digits than its factorization.

21476854354350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17708565 (or 17708560 counting only the distinct ones).

The product of its (nonzero) digits is 48384000, while the sum is 57.

The spelling of 21476854354350 in words is "twenty-one trillion, four hundred seventy-six billion, eight hundred fifty-four million, three hundred fifty-four thousand, three hundred fifty".