22747077522621 has 6 divisors (see below), whose sum is σ = 32856889754910. Its totient is φ = 15164718348408.

The previous prime is 22747077522619. The next prime is 22747077522739. The reversal of 22747077522621 is 12622577074722.

22747077522621 is a `hidden beast` number, since 2 + 2 + 7 + 4 + 7 + 0 + 7 + 7 + 5 + 2 + 2 + 621 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12183862510521 + 10563215012100 = 3490539^2 + 3250110^2 .

It is not a de Polignac number, because 22747077522621 - 2¹ = 22747077522619 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22747077520621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1263726529026 + ... + 1263726529043.

It is an arithmetic number, because the mean of its divisors is an integer number (5476148292485).

Almost surely, 2^{22747077522621} is an apocalyptic number.

It is an amenable number.

22747077522621 is a deficient number, since it is larger than the sum of its proper divisors (10109812232289).

22747077522621 is a wasteful number, since it uses less digits than its factorization.

22747077522621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2527453058075 (or 2527453058072 counting only the distinct ones).

The product of its (nonzero) digits is 9219840, while the sum is 54.

The spelling of 22747077522621 in words is "twenty-two trillion, seven hundred forty-seven billion, seventy-seven million, five hundred twenty-two thousand, six hundred twenty-one".