21957347095 has 8 divisors (see below), whose sum is σ = 27494417376. Its totient is φ = 16802143776.

The previous prime is 21957347047. The next prime is 21957347107. The reversal of 21957347095 is 59074375912.

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

It is a cyclic number.

It is not a de Polignac number, because 21957347095 - 2⁹ = 21957346583 is a prime.

It is a Duffinian number.

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, 95466612 + ... + 95466841.

It is an arithmetic number, because the mean of its divisors is an integer number (3436802172).

Almost surely, 2^21957347095 is an apocalyptic number.

21957347095 is a deficient number, since it is larger than the sum of its proper divisors (5537070281).

21957347095 is a wasteful number, since it uses less digits than its factorization.

21957347095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190933481.

The product of its (nonzero) digits is 2381400, while the sum is 52.

The spelling of 21957347095 in words is "twenty-one billion, nine hundred fifty-seven million, three hundred forty-seven thousand, ninety-five".