21754229037 has 32 divisors (see below), whose sum is σ = 30668077440. Its totient is φ = 13678560000.

The previous prime is 21754228997. The next prime is 21754229051. The reversal of 21754229037 is 73092245712.

It is not a de Polignac number, because 21754229037 - 2²⁴ = 21737451821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21754229037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21754229437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18419587 + ... + 18420767.

It is an arithmetic number, because the mean of its divisors is an integer number (958377420).

Almost surely, 2^21754229037 is an apocalyptic number.

It is an amenable number.

21754229037 is a deficient number, since it is larger than the sum of its proper divisors (8913848403).

21754229037 is a wasteful number, since it uses less digits than its factorization.

21754229037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2365.

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 21754229037 in words is "twenty-one billion, seven hundred fifty-four million, two hundred twenty-nine thousand, thirty-seven".