21674527046 has 16 divisors (see below), whose sum is σ = 32692849776. Its totient is φ = 10777021536.

The previous prime is 21674527037. The next prime is 21674527081. The reversal of 21674527046 is 64072547612.

It is a happy number.

It is a super-2 number, since 2×21674527046² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21674526988 and 21674527006.

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, 370940 + ... + 425376.

It is an arithmetic number, because the mean of its divisors is an integer number (2043303111).

Almost surely, 2^21674527046 is an apocalyptic number.

21674527046 is a deficient number, since it is larger than the sum of its proper divisors (11018322730).

21674527046 is a wasteful number, since it uses less digits than its factorization.

21674527046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55543.

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 21674527046 in words is "twenty-one billion, six hundred seventy-four million, five hundred twenty-seven thousand, forty-six".