21910243701 has 8 divisors (see below), whose sum is σ = 29215557760. Its totient is φ = 14605879392.

The previous prime is 21910243681. The next prime is 21910243709. The reversal of 21910243701 is 10734201912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21910243701 - 2¹³ = 21910235509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21910243709) 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, 181741 + ... + 277218.

It is an arithmetic number, because the mean of its divisors is an integer number (3651944720).

Almost surely, 2^21910243701 is an apocalyptic number.

It is an amenable number.

21910243701 is a deficient number, since it is larger than the sum of its proper divisors (7305314059).

21910243701 is a wasteful number, since it uses less digits than its factorization.

21910243701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474875.

The product of its (nonzero) digits is 3024, while the sum is 30.

The spelling of 21910243701 in words is "twenty-one billion, nine hundred ten million, two hundred forty-three thousand, seven hundred one".