21227462374 has 16 divisors (see below), whose sum is σ = 32521357440. Its totient is φ = 10387990080.

The previous prime is 21227462341. The next prime is 21227462387. The reversal of 21227462374 is 47326472212.

It is a happy number.

It is a super-3 number, since 3×21227462374³ (a number of 32 digits) contains 333 as substring.

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, 201462 + ... + 288169.

It is an arithmetic number, because the mean of its divisors is an integer number (2032584840).

Almost surely, 2^21227462374 is an apocalyptic number.

21227462374 is a deficient number, since it is larger than the sum of its proper divisors (11293895066).

21227462374 is a wasteful number, since it uses less digits than its factorization.

21227462374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490095.

The product of its digits is 225792, while the sum is 40.

The spelling of 21227462374 in words is "twenty-one billion, two hundred twenty-seven million, four hundred sixty-two thousand, three hundred seventy-four".