21963157102 has 8 divisors (see below), whose sum is σ = 34377115536. Its totient is φ = 10504118592.

The previous prime is 21963157093. The next prime is 21963157127. The reversal of 21963157102 is 20175136912.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238729923 + ... + 238730014.

It is an arithmetic number, because the mean of its divisors is an integer number (4297139442).

Almost surely, 2^21963157102 is an apocalyptic number.

21963157102 is a deficient number, since it is larger than the sum of its proper divisors (12413958434).

21963157102 is a wasteful number, since it uses less digits than its factorization.

21963157102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477459962.

The product of its (nonzero) digits is 22680, while the sum is 37.

The spelling of 21963157102 in words is "twenty-one billion, nine hundred sixty-three million, one hundred fifty-seven thousand, one hundred two".