21307122862 has 8 divisors (see below), whose sum is σ = 32410834992. Its totient is φ = 10503511200.

The previous prime is 21307122827. The next prime is 21307122953. The reversal of 21307122862 is 26822170312.

It is a happy number.

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, 75024939 + ... + 75025222.

It is an arithmetic number, because the mean of its divisors is an integer number (4051354374).

Almost surely, 2^21307122862 is an apocalyptic number.

21307122862 is a deficient number, since it is larger than the sum of its proper divisors (11103712130).

21307122862 is a wasteful number, since it uses less digits than its factorization.

21307122862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150050234.

The product of its (nonzero) digits is 16128, while the sum is 34.

The spelling of 21307122862 in words is "twenty-one billion, three hundred seven million, one hundred twenty-two thousand, eight hundred sixty-two".