21960114757 has 4 divisors (see below), whose sum is σ = 25097274016. Its totient is φ = 18822955500.

The previous prime is 21960114751. The next prime is 21960114767. The reversal of 21960114757 is 75741106912.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21960114757 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 (21960114751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1568579619 + ... + 1568579632.

It is an arithmetic number, because the mean of its divisors is an integer number (6274318504).

Almost surely, 2^21960114757 is an apocalyptic number.

It is an amenable number.

21960114757 is a deficient number, since it is larger than the sum of its proper divisors (3137159259).

21960114757 is an equidigital number, since it uses as much as digits as its factorization.

21960114757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3137159258.

The product of its (nonzero) digits is 105840, while the sum is 43.

The spelling of 21960114757 in words is "twenty-one billion, nine hundred sixty million, one hundred fourteen thousand, seven hundred fifty-seven".