21154703062 has 8 divisors (see below), whose sum is σ = 31766214600. Its totient is φ = 10565964864.

The previous prime is 21154703027. The next prime is 21154703093. The reversal of 21154703062 is 26030745112.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5691012 + ... + 5694727.

It is an arithmetic number, because the mean of its divisors is an integer number (3970776825).

Almost surely, 2^21154703062 is an apocalyptic number.

21154703062 is a deficient number, since it is larger than the sum of its proper divisors (10611511538).

21154703062 is a wasteful number, since it uses less digits than its factorization.

21154703062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11386670.

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 21154703062 in words is "twenty-one billion, one hundred fifty-four million, seven hundred three thousand, sixty-two".