22477706961989 has 8 divisors (see below), whose sum is σ = 23456905619712. Its totient is φ = 21498667225200.

The previous prime is 22477706961977. The next prime is 22477706961991. The reversal of 22477706961989 is 98916960777422.

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 22477706961989 - 2⁸ = 22477706961733 is a prime.

It is a super-2 number, since 2×22477706961989² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22477706961289) 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, 39441149 + ... + 40006994.

It is an arithmetic number, because the mean of its divisors is an integer number (2932113202464).

Almost surely, 2^{22477706961989} is an apocalyptic number.

It is an amenable number.

22477706961989 is a deficient number, since it is larger than the sum of its proper divisors (979198657723).

22477706961989 is a wasteful number, since it uses less digits than its factorization.

22477706961989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79460467.

The product of its (nonzero) digits is 1152216576, while the sum is 77.

The spelling of 22477706961989 in words is "twenty-two trillion, four hundred seventy-seven billion, seven hundred six million, nine hundred sixty-one thousand, nine hundred eighty-nine".