22577428457 has 2 divisors, whose sum is σ = 22577428458. Its totient is φ = 22577428456.

The previous prime is 22577428427. The next prime is 22577428499. The reversal of 22577428457 is 75482477522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17237326681 + 5340101776 = 131291^2 + 73076^2 .

It is a cyclic number.

It is not a de Polignac number, because 22577428457 - 2⁸ = 22577428201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22577428399 and 22577428408.

It is not a weakly prime, because it can be changed into another prime (22577428427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11288714228 + 11288714229.

It is an arithmetic number, because the mean of its divisors is an integer number (11288714229).

Almost surely, 2^22577428457 is an apocalyptic number.

It is an amenable number.

22577428457 is a deficient number, since it is larger than the sum of its proper divisors (1).

22577428457 is an equidigital number, since it uses as much as digits as its factorization.

22577428457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8780800, while the sum is 53.

The spelling of 22577428457 in words is "twenty-two billion, five hundred seventy-seven million, four hundred twenty-eight thousand, four hundred fifty-seven".