22691206939539 has 8 divisors (see below), whose sum is σ = 30256190258112. Its totient is φ = 15126847457000.

The previous prime is 22691206939529. The next prime is 22691206939603. The reversal of 22691206939539 is 93593960219622.

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 22691206939539 - 2⁵ = 22691206939507 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22691206939539.

It is not an unprimeable number, because it can be changed into a prime (22691206939529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155874129 + ... + 156019634.

It is an arithmetic number, because the mean of its divisors is an integer number (3782023782264).

Almost surely, 2^{22691206939539} is an apocalyptic number.

22691206939539 is a deficient number, since it is larger than the sum of its proper divisors (7564983318573).

22691206939539 is a wasteful number, since it uses less digits than its factorization.

22691206939539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311918017.

The product of its (nonzero) digits is 85030560, while the sum is 66.

The spelling of 22691206939539 in words is "twenty-two trillion, six hundred ninety-one billion, two hundred six million, nine hundred thirty-nine thousand, five hundred thirty-nine".