20572928941 has 2 divisors, whose sum is σ = 20572928942. Its totient is φ = 20572928940.

The previous prime is 20572928923. The next prime is 20572928953. The reversal of 20572928941 is 14982927502.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14293158916 + 6279770025 = 119554^2 + 79245^2 .

It is a cyclic number.

It is not a de Polignac number, because 20572928941 - 2¹³ = 20572920749 is a prime.

It is a super-2 number, since 2×20572928941² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20572928921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10286464470 + 10286464471.

It is an arithmetic number, because the mean of its divisors is an integer number (10286464471).

Almost surely, 2^20572928941 is an apocalyptic number.

It is an amenable number.

20572928941 is a deficient number, since it is larger than the sum of its proper divisors (1).

20572928941 is an equidigital number, since it uses as much as digits as its factorization.

20572928941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 20572928941 in words is "twenty billion, five hundred seventy-two million, nine hundred twenty-eight thousand, nine hundred forty-one".